18132957 has 8 divisors (see below), whose sum is σ = 26863680. Its totient is φ = 12088620.

The previous prime is 18132953. The next prime is 18132977. The reversal of 18132957 is 75923181.

It is not a de Polignac number, because 18132957 - 2² = 18132953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18132953) 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, 335769 + ... + 335822.

It is an arithmetic number, because the mean of its divisors is an integer number (3357960).

Almost surely, 2^18132957 is an apocalyptic number.

It is an amenable number.

18132957 is a deficient number, since it is larger than the sum of its proper divisors (8730723).

18132957 is an equidigital number, since it uses as much as digits as its factorization.

18132957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671600 (or 671594 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 18132957 is about 4258.2809911982. The cubic root of 18132957 is about 262.7178273561.

The spelling of 18132957 in words is "eighteen million, one hundred thirty-two thousand, nine hundred fifty-seven".