115215023 has 24 divisors (see below), whose sum is σ = 148728960. Its totient is φ = 88231920.

The previous prime is 115215019. The next prime is 115215041. The reversal of 115215023 is 320512511.

It is a happy number.

It is not a de Polignac number, because 115215023 - 2² = 115215019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115214986 and 115215004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115215013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29990 + ... + 33612.

It is an arithmetic number, because the mean of its divisors is an integer number (6197040).

Almost surely, 2^115215023 is an apocalyptic number.

115215023 is a deficient number, since it is larger than the sum of its proper divisors (33513937).

115215023 is a wasteful number, since it uses less digits than its factorization.

115215023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707 (or 3700 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 115215023 is about 10733.8261118764. The cubic root of 115215023 is about 486.5973098655.

Adding to 115215023 its reverse (320512511), we get a palindrome (435727534).

The spelling of 115215023 in words is "one hundred fifteen million, two hundred fifteen thousand, twenty-three".