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15434154123013 = 32487974750729

15434154123013 has 4 divisors (see below), whose sum is σ = 15434162122540. Its totient is φ = 15434146123488.

The previous prime is 15434154122969. The next prime is 15434154123083. The reversal of 15434154123013 is 31032145143451.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13289575467169 + 2144578655844 = 3645487^2 + 1464438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15434154123013 is a prime.

It is a super-2 number, since 2×154341541230132 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15434154123083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873433 + ... + 5624161.

It is an arithmetic number, because the mean of its divisors is an integer number (3858540530635).

Almost surely, 215434154123013 is an apocalyptic number.

It is an amenable number.

15434154123013 is a deficient number, since it is larger than the sum of its proper divisors (7999527).

15434154123013 is an equidigital number, since it uses as much as digits as its factorization.

15434154123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7999526.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 15434154123013 its reverse (31032145143451), we get a palindrome (46466299266464).

The spelling of 15434154123013 in words is "fifteen trillion, four hundred thirty-four billion, one hundred fifty-four million, one hundred twenty-three thousand, thirteen".

Divisors: 1 3248797 4750729 15434154123013