115551015 has 16 divisors (see below), whose sum is σ = 185232768. Its totient is φ = 61510176.

The previous prime is 115551013. The next prime is 115551017. The reversal of 115551015 is 510155511.

It is an interprime number because it is at equal distance from previous prime (115551013) and next prime (115551017).

It is not a de Polignac number, because 115551015 - 2¹ = 115551013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115551013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1164 + ... + 15246.

It is an arithmetic number, because the mean of its divisors is an integer number (11577048).

Almost surely, 2^115551015 is an apocalyptic number.

115551015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115551015 is a deficient number, since it is larger than the sum of its proper divisors (69681753).

115551015 is a wasteful number, since it uses less digits than its factorization.

115551015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14638.

The product of its (nonzero) digits is 625, while the sum is 24.

The square root of 115551015 is about 10749.4658006805. The cubic root of 115551015 is about 487.0698585814.

The spelling of 115551015 in words is "one hundred fifteen million, five hundred fifty-one thousand, fifteen".