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10144155121 = 15764612453
BaseRepresentation
bin10010111001010001…
…11000010111110001
3222011222000110202221
421130220320113301
5131233400430441
64354332241041
7506244616162
oct113450702761
928158013687
1010144155121
114336124981
121b71310181
13c58820b69
146c3369769
153e58858d1
hex25ca385f1

10144155121 has 4 divisors (see below), whose sum is σ = 10208767732. Its totient is φ = 10079542512.

The previous prime is 10144155067. The next prime is 10144155139. The reversal of 10144155121 is 12155144101.

It is a happy number.

10144155121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12155144101 = 66531827017.

It can be written as a sum of positive squares in 2 ways, for example, as 1035552400 + 9108602721 = 32180^2 + 95439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10144155121 is a prime.

It is a super-3 number, since 3×101441551213 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10144155181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32306070 + ... + 32306383.

It is an arithmetic number, because the mean of its divisors is an integer number (2552191933).

Almost surely, 210144155121 is an apocalyptic number.

It is an amenable number.

10144155121 is a deficient number, since it is larger than the sum of its proper divisors (64612611).

10144155121 is an equidigital number, since it uses as much as digits as its factorization.

10144155121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64612610.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 10144155121 its reverse (12155144101), we get a palindrome (22299299222).

The spelling of 10144155121 in words is "ten billion, one hundred forty-four million, one hundred fifty-five thousand, one hundred twenty-one".

Divisors: 1 157 64612453 10144155121