115321515 has 8 divisors (see below), whose sum is σ = 184514448. Its totient is φ = 61504800.

The previous prime is 115321513. The next prime is 115321541. The reversal of 115321515 is 515123511.

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

It is not a de Polignac number, because 115321515 - 2¹ = 115321513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115321513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3844036 + ... + 3844065.

It is an arithmetic number, because the mean of its divisors is an integer number (23064306).

Almost surely, 2^115321515 is an apocalyptic number.

115321515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115321515 is a deficient number, since it is larger than the sum of its proper divisors (69192933).

115321515 is an equidigital number, since it uses as much as digits as its factorization.

115321515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7688109.

The product of its digits is 750, while the sum is 24.

The square root of 115321515 is about 10738.7855458613. The cubic root of 115321515 is about 486.7471825772.

The spelling of 115321515 in words is "one hundred fifteen million, three hundred twenty-one thousand, five hundred fifteen".