15116121 has 12 divisors (see below), whose sum is σ = 21878272. Its totient is φ = 10057176.

The previous prime is 15116107. The next prime is 15116137. The reversal of 15116121 is 12161151.

It is a happy number.

15116121 is a `hidden beast` number, since 1 + 51 + 1 + 612 + 1 = 666.

It is not a de Polignac number, because 15116121 - 2⁵ = 15116089 is a prime.

It is a super-2 number, since 2×15116121² = 456994228173282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15116094 and 15116103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15116161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4080 + ... + 6846.

Almost surely, 2^15116121 is an apocalyptic number.

It is an amenable number.

15116121 is a deficient number, since it is larger than the sum of its proper divisors (6762151).

15116121 is a wasteful number, since it uses less digits than its factorization.

15116121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380 (or 3377 counting only the distinct ones).

The product of its digits is 60, while the sum is 18.

The square root of 15116121 is about 3887.9456014713. The cubic root of 15116121 is about 247.2559700613.

Adding to 15116121 its reverse (12161151), we get a palindrome (27277272).

The spelling of 15116121 in words is "fifteen million, one hundred sixteen thousand, one hundred twenty-one".