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14152121 = 36133917
BaseRepresentation
bin110101111111…
…000110111001
3222122000001122
4311333012321
512110331441
61223155025
7231201554
oct65770671
928560048
1014152121
117a96775
1248a5a75
132c16749
141c4569b
15139834b
hexd7f1b9

14152121 has 4 divisors (see below), whose sum is σ = 14159652. Its totient is φ = 14144592.

The previous prime is 14152091. The next prime is 14152163. The reversal of 14152121 is 12125141.

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 4141225 + 10010896 = 2035^2 + 3164^2 .

It is a cyclic number.

It is not a de Polignac number, because 14152121 - 26 = 14152057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14152121.

It is not an unprimeable number, because it can be changed into a prime (14152181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1655 + ... + 5571.

It is an arithmetic number, because the mean of its divisors is an integer number (3539913).

Almost surely, 214152121 is an apocalyptic number.

It is an amenable number.

14152121 is a deficient number, since it is larger than the sum of its proper divisors (7531).

14152121 is an equidigital number, since it uses as much as digits as its factorization.

14152121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7530.

The product of its digits is 80, while the sum is 17.

The square root of 14152121 is about 3761.9304884593. The cubic root of 14152121 is about 241.8840199660.

Adding to 14152121 its reverse (12125141), we get a palindrome (26277262).

The spelling of 14152121 in words is "fourteen million, one hundred fifty-two thousand, one hundred twenty-one".

Divisors: 1 3613 3917 14152121