115298731 has 4 divisors (see below), whose sum is σ = 115631352. Its totient is φ = 114966112.

The previous prime is 115298719. The next prime is 115298753. The reversal of 115298731 is 137892511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 137892511 = 613 ⋅224947.

It is a cyclic number.

It is not a de Polignac number, because 115298731 - 2¹⁵ = 115265963 is a prime.

It is a super-2 number, since 2×115298731² = 26587594740420722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115298761) 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 in 3 ways as a sum of consecutive naturals, for example, 165790 + ... + 166483.

It is an arithmetic number, because the mean of its divisors is an integer number (28907838).

Almost surely, 2^115298731 is an apocalyptic number.

115298731 is a deficient number, since it is larger than the sum of its proper divisors (332621).

115298731 is an equidigital number, since it uses as much as digits as its factorization.

115298731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332620.

The product of its digits is 15120, while the sum is 37.

The square root of 115298731 is about 10737.7246658685. The cubic root of 115298731 is about 486.7151250198.

The spelling of 115298731 in words is "one hundred fifteen million, two hundred ninety-eight thousand, seven hundred thirty-one".