115618433 has 4 divisors (see below), whose sum is σ = 132135360. Its totient is φ = 99101508.

The previous prime is 115618421. The next prime is 115618457. The reversal of 115618433 is 334816511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115618433 - 2⁸ = 115618177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115618433.

It is not an unprimeable number, because it can be changed into a prime (115618333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8258453 + ... + 8258466.

It is an arithmetic number, because the mean of its divisors is an integer number (33033840).

Almost surely, 2^115618433 is an apocalyptic number.

It is an amenable number.

115618433 is a deficient number, since it is larger than the sum of its proper divisors (16516927).

115618433 is an equidigital number, since it uses as much as digits as its factorization.

115618433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16516926.

The product of its digits is 8640, while the sum is 32.

The square root of 115618433 is about 10752.6012201699. The cubic root of 115618433 is about 487.1645667975.

The spelling of 115618433 in words is "one hundred fifteen million, six hundred eighteen thousand, four hundred thirty-three".