18147152 has 20 divisors (see below), whose sum is σ = 36295296. Its totient is φ = 8780640.

The previous prime is 18147149. The next prime is 18147167. The reversal of 18147152 is 25174181.

18147152 is an admirable number.

It is a super-2 number, since 2×18147152² = 658638251422208, which contains 22 as substring.

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, 17798 + ... + 18789.

Almost surely, 2^18147152 is an apocalyptic number.

It is an amenable number.

18147152 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18147152 is a wasteful number, since it uses less digits than its factorization.

18147152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36626 (or 36620 counting only the distinct ones).

The product of its digits is 2240, while the sum is 29.

The square root of 18147152 is about 4259.9474175159. The cubic root of 18147152 is about 262.7863638309.

The spelling of 18147152 in words is "eighteen million, one hundred forty-seven thousand, one hundred fifty-two".