115598431 has 4 divisors (see below), whose sum is σ = 124490632. Its totient is φ = 106706232.

The previous prime is 115598423. The next prime is 115598447. The reversal of 115598431 is 134895511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134895511 = 149 ⋅905339.

It is a cyclic number.

It is not a de Polignac number, because 115598431 - 2³ = 115598423 is a prime.

It is a super-2 number, since 2×115598431² = 26725994499323522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115592431) 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, 4446081 + ... + 4446106.

It is an arithmetic number, because the mean of its divisors is an integer number (31122658).

Almost surely, 2^115598431 is an apocalyptic number.

115598431 is a deficient number, since it is larger than the sum of its proper divisors (8892201).

115598431 is an equidigital number, since it uses as much as digits as its factorization.

115598431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892200.

The product of its digits is 21600, while the sum is 37.

The square root of 115598431 is about 10751.6710794183. The cubic root of 115598431 is about 487.1364720051.

The spelling of 115598431 in words is "one hundred fifteen million, five hundred ninety-eight thousand, four hundred thirty-one".