13172152 has 32 divisors (see below), whose sum is σ = 28919520. Its totient is φ = 5506560.

The previous prime is 13172141. The next prime is 13172167. The reversal of 13172152 is 25127131.

It is a happy number.

It is a super-2 number, since 2×13172152² = 347011176622208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573 + ... + 5164.

It is an arithmetic number, because the mean of its divisors is an integer number (903735).

Almost surely, 2^13172152 is an apocalyptic number.

It is an amenable number.

13172152 is an abundant number, since it is smaller than the sum of its proper divisors (15747368).

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

13172152 is a wasteful number, since it uses less digits than its factorization.

13172152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5791 (or 5787 counting only the distinct ones).

The product of its digits is 420, while the sum is 22.

The square root of 13172152 is about 3629.3459465860. The cubic root of 13172152 is about 236.1668359709.

Adding to 13172152 its reverse (25127131), we get a palindrome (38299283).

The spelling of 13172152 in words is "thirteen million, one hundred seventy-two thousand, one hundred fifty-two".