115887157 has 2 divisors, whose sum is σ = 115887158. Its totient is φ = 115887156.

The previous prime is 115887143. The next prime is 115887169. The reversal of 115887157 is 751788511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90897156 + 24990001 = 9534^2 + 4999^2 .

It is a cyclic number.

It is not a de Polignac number, because 115887157 - 2²³ = 107498549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115887557) 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, 57943578 + 57943579.

It is an arithmetic number, because the mean of its divisors is an integer number (57943579).

Almost surely, 2^115887157 is an apocalyptic number.

It is an amenable number.

115887157 is a deficient number, since it is larger than the sum of its proper divisors (1).

115887157 is an equidigital number, since it uses as much as digits as its factorization.

115887157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78400, while the sum is 43.

The square root of 115887157 is about 10765.0897348791. The cubic root of 115887157 is about 487.5417025031.

The spelling of 115887157 in words is "one hundred fifteen million, eight hundred eighty-seven thousand, one hundred fifty-seven".