15161172 has 24 divisors (see below), whose sum is σ = 38097696. Its totient is φ = 4664928.

The previous prime is 15161149. The next prime is 15161173. The reversal of 15161172 is 27116151.

It is a super-2 number, since 2×15161172² = 459722272827168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15161173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48438 + ... + 48749.

It is an arithmetic number, because the mean of its divisors is an integer number (1587404).

Almost surely, 2^15161172 is an apocalyptic number.

15161172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15161172 is an abundant number, since it is smaller than the sum of its proper divisors (22936524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15161172 is a wasteful number, since it uses less digits than its factorization.

15161172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97207 (or 97205 counting only the distinct ones).

The product of its digits is 420, while the sum is 24.

The square root of 15161172 is about 3893.7349678683. The cubic root of 15161172 is about 247.5013610781.

The spelling of 15161172 in words is "fifteen million, one hundred sixty-one thousand, one hundred seventy-two".