12491315 has 16 divisors (see below), whose sum is σ = 15612480. Its totient is φ = 9582720.

The previous prime is 12491299. The next prime is 12491321. The reversal of 12491315 is 51319421.

It is not a de Polignac number, because 12491315 - 2⁴ = 12491299 is a prime.

It is a super-4 number, since 4×12491315⁴ (a number of 29 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40010 + ... + 40320.

It is an arithmetic number, because the mean of its divisors is an integer number (975780).

Almost surely, 2^12491315 is an apocalyptic number.

12491315 is a deficient number, since it is larger than the sum of its proper divisors (3121165).

12491315 is a wasteful number, since it uses less digits than its factorization.

12491315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622.

The product of its digits is 1080, while the sum is 26.

The square root of 12491315 is about 3534.3054480336. The cubic root of 12491315 is about 232.0256796287.

The spelling of 12491315 in words is "twelve million, four hundred ninety-one thousand, three hundred fifteen".