13617172 has 12 divisors (see below), whose sum is σ = 23951200. Its totient is φ = 6773976.

The previous prime is 13617157. The next prime is 13617181. The reversal of 13617172 is 27171631.

It is a self number, because there is not a number n which added to its sum of digits gives 13617172.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7758 + ... + 9349.

Almost surely, 2^13617172 is an apocalyptic number.

It is an amenable number.

13617172 is a deficient number, since it is larger than the sum of its proper divisors (10334028).

13617172 is a wasteful number, since it uses less digits than its factorization.

13617172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17310 (or 17308 counting only the distinct ones).

The product of its digits is 1764, while the sum is 28.

The square root of 13617172 is about 3690.1452545936. The cubic root of 13617172 is about 238.7970593347.

The spelling of 13617172 in words is "thirteen million, six hundred seventeen thousand, one hundred seventy-two".