115245761 has 4 divisors (see below), whose sum is σ = 115740612. Its totient is φ = 114750912.

The previous prime is 115245751. The next prime is 115245763. The reversal of 115245761 is 167542511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67897600 + 47348161 = 8240^2 + 6881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115245761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115245763) 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 in 3 ways as a sum of consecutive naturals, for example, 247076 + ... + 247541.

It is an arithmetic number, because the mean of its divisors is an integer number (28935153).

Almost surely, 2^115245761 is an apocalyptic number.

It is an amenable number.

115245761 is a deficient number, since it is larger than the sum of its proper divisors (494851).

115245761 is an equidigital number, since it uses as much as digits as its factorization.

115245761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494850.

The product of its digits is 8400, while the sum is 32.

The square root of 115245761 is about 10735.2578450636. The cubic root of 115245761 is about 486.6405788126.

The spelling of 115245761 in words is "one hundred fifteen million, two hundred forty-five thousand, seven hundred sixty-one".