115524991 has 2 divisors, whose sum is σ = 115524992. Its totient is φ = 115524990.

The previous prime is 115524971. The next prime is 115525019. The reversal of 115524991 is 199425511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115524991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115524991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115524901) 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, 57762495 + 57762496.

It is an arithmetic number, because the mean of its divisors is an integer number (57762496).

Almost surely, 2^115524991 is an apocalyptic number.

115524991 is a deficient number, since it is larger than the sum of its proper divisors (1).

115524991 is an equidigital number, since it uses as much as digits as its factorization.

115524991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 37.

The square root of 115524991 is about 10748.2552537610. The cubic root of 115524991 is about 487.0332904396.

The spelling of 115524991 in words is "one hundred fifteen million, five hundred twenty-four thousand, nine hundred ninety-one".