115500215 has 8 divisors (see below), whose sum is σ = 139872480. Its totient is φ = 91552032.

The previous prime is 115500149. The next prime is 115500223. The reversal of 115500215 is 512005511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 115500215 - 2²⁰ = 114451639 is a prime.

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, 105419 + ... + 106508.

It is an arithmetic number, because the mean of its divisors is an integer number (17484060).

Almost surely, 2^115500215 is an apocalyptic number.

115500215 is a deficient number, since it is larger than the sum of its proper divisors (24372265).

115500215 is a wasteful number, since it uses less digits than its factorization.

115500215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212041.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 115500215 is about 10747.1026328029. The cubic root of 115500215 is about 486.9984708465.

Adding to 115500215 its reverse (512005511), we get a palindrome (627505726).

The spelling of 115500215 in words is "one hundred fifteen million, five hundred thousand, two hundred fifteen".