18110957 has 2 divisors, whose sum is σ = 18110958. Its totient is φ = 18110956.

The previous prime is 18110951. The next prime is 18110977. The reversal of 18110957 is 75901181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14523721 + 3587236 = 3811^2 + 1894^2 .

It is a cyclic number.

It is not a de Polignac number, because 18110957 - 2⁴ = 18110941 is a prime.

It is a Chen prime.

It is equal to p_1157945 and since 18110957 and 1157945 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18110951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9055478 + 9055479.

It is an arithmetic number, because the mean of its divisors is an integer number (9055479).

Almost surely, 2^18110957 is an apocalyptic number.

It is an amenable number.

18110957 is a deficient number, since it is larger than the sum of its proper divisors (1).

18110957 is an equidigital number, since it uses as much as digits as its factorization.

18110957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 18110957 is about 4255.6970051920. The cubic root of 18110957 is about 262.6115359729.

The spelling of 18110957 in words is "eighteen million, one hundred ten thousand, nine hundred fifty-seven".