18137152 has 28 divisors (see below), whose sum is σ = 39264336. Its totient is φ = 8243840.

The previous prime is 18137149. The next prime is 18137177. The reversal of 18137152 is 25173181.

It is a super-2 number, since 2×18137152² = 657912565342208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18137152.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12178 + ... + 13585.

Almost surely, 2^18137152 is an apocalyptic number.

It is an amenable number.

18137152 is an abundant number, since it is smaller than the sum of its proper divisors (21127184).

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

18137152 is a wasteful number, since it uses less digits than its factorization.

18137152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25786 (or 25776 counting only the distinct ones).

The product of its digits is 1680, while the sum is 28.

The square root of 18137152 is about 4258.7735323682. The cubic root of 18137152 is about 262.7380854292.

The spelling of 18137152 in words is "eighteen million, one hundred thirty-seven thousand, one hundred fifty-two".