115513015 has 8 divisors (see below), whose sum is σ = 144642528. Its totient is φ = 88392480.

The previous prime is 115512997. The next prime is 115513039. The reversal of 115513015 is 510315511.

115513015 is nontrivially palindromic in base 15.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115513015 - 2⁵ = 115512983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502116 + ... + 502345.

It is an arithmetic number, because the mean of its divisors is an integer number (18080316).

Almost surely, 2^115513015 is an apocalyptic number.

115513015 is a deficient number, since it is larger than the sum of its proper divisors (29129513).

115513015 is a wasteful number, since it uses less digits than its factorization.

115513015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004489.

The product of its (nonzero) digits is 375, while the sum is 22.

The square root of 115513015 is about 10747.6981256453. The cubic root of 115513015 is about 487.0164602796.

Adding to 115513015 its reverse (510315511), we get a palindrome (625828526).

The spelling of 115513015 in words is "one hundred fifteen million, five hundred thirteen thousand, fifteen".