115391215 has 8 divisors (see below), whose sum is σ = 139740480. Its totient is φ = 91465632.

The previous prime is 115391183. The next prime is 115391233. The reversal of 115391215 is 512193511.

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 115391215 - 2⁵ = 115391183 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 105319 + ... + 106408.

It is an arithmetic number, because the mean of its divisors is an integer number (17467560).

Almost surely, 2^115391215 is an apocalyptic number.

115391215 is a deficient number, since it is larger than the sum of its proper divisors (24349265).

115391215 is a wasteful number, since it uses less digits than its factorization.

115391215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211841.

The product of its digits is 1350, while the sum is 28.

The square root of 115391215 is about 10742.0303015771. The cubic root of 115391215 is about 486.8452257045.

The spelling of 115391215 in words is "one hundred fifteen million, three hundred ninety-one thousand, two hundred fifteen".