115858537 has 2 divisors, whose sum is σ = 115858538. Its totient is φ = 115858536.

The previous prime is 115858529. The next prime is 115858549. The reversal of 115858537 is 735858511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80622441 + 35236096 = 8979^2 + 5936^2 .

It is a cyclic number.

It is not a de Polignac number, because 115858537 - 2³ = 115858529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115858493 and 115858502.

It is not a weakly prime, because it can be changed into another prime (115858517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57929268 + 57929269.

It is an arithmetic number, because the mean of its divisors is an integer number (57929269).

Almost surely, 2^115858537 is an apocalyptic number.

It is an amenable number.

115858537 is a deficient number, since it is larger than the sum of its proper divisors (1).

115858537 is an equidigital number, since it uses as much as digits as its factorization.

115858537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168000, while the sum is 43.

The square root of 115858537 is about 10763.7603559351. The cubic root of 115858537 is about 487.5015640537.

It can be divided in two parts, 1158 and 58537, that added together give a palindrome (59695).

The spelling of 115858537 in words is "one hundred fifteen million, eight hundred fifty-eight thousand, five hundred thirty-seven".