118856557 has 2 divisors, whose sum is σ = 118856558. Its totient is φ = 118856556.

The previous prime is 118856513. The next prime is 118856567. The reversal of 118856557 is 755658811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98525476 + 20331081 = 9926^2 + 4509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118856557 is a prime.

It is a super-2 number, since 2×118856557² = 28253762283788498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118856567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59428278 + 59428279.

It is an arithmetic number, because the mean of its divisors is an integer number (59428279).

Almost surely, 2^118856557 is an apocalyptic number.

It is an amenable number.

118856557 is a deficient number, since it is larger than the sum of its proper divisors (1).

118856557 is an equidigital number, since it uses as much as digits as its factorization.

118856557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336000, while the sum is 46.

The square root of 118856557 is about 10902.1354330241. The cubic root of 118856557 is about 491.6707606796.

The spelling of 118856557 in words is "one hundred eighteen million, eight hundred fifty-six thousand, five hundred fifty-seven".