12087315 has 12 divisors (see below), whose sum is σ = 20951424. Its totient is φ = 6446544.

The previous prime is 12087311. The next prime is 12087347. The reversal of 12087315 is 51378021.

It is not a de Polignac number, because 12087315 - 2² = 12087311 is a prime.

It is a super-2 number, since 2×12087315² = 292206367818450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12087311) 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, 134259 + ... + 134348.

It is an arithmetic number, because the mean of its divisors is an integer number (1745952).

Almost surely, 2^12087315 is an apocalyptic number.

12087315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12087315 is a deficient number, since it is larger than the sum of its proper divisors (8864109).

12087315 is a wasteful number, since it uses less digits than its factorization.

12087315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268618 (or 268615 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 12087315 is about 3476.6816075102. The cubic root of 12087315 is about 229.4967889394.

The spelling of 12087315 in words is "twelve million, eighty-seven thousand, three hundred fifteen".