115351515 has 12 divisors (see below), whose sum is σ = 199942704. Its totient is φ = 61520784.

The previous prime is 115351471. The next prime is 115351519. The reversal of 115351515 is 515153511.

115351515 is a `hidden beast` number, since 115 + 35 + 1 + 515 = 666.

It is not a de Polignac number, because 115351515 - 2¹⁴ = 115335131 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (115351519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1281639 + ... + 1281728.

It is an arithmetic number, because the mean of its divisors is an integer number (16661892).

Almost surely, 2^115351515 is an apocalyptic number.

115351515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115351515 is a deficient number, since it is larger than the sum of its proper divisors (84591189).

115351515 is a wasteful number, since it uses less digits than its factorization.

115351515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563378 (or 2563375 counting only the distinct ones).

The product of its digits is 1875, while the sum is 27.

The square root of 115351515 is about 10740.1822610233. The cubic root of 115351515 is about 486.7893867557.

The spelling of 115351515 in words is "one hundred fifteen million, three hundred fifty-one thousand, five hundred fifteen".