12791015 has 4 divisors (see below), whose sum is σ = 15349224. Its totient is φ = 10232808.

The previous prime is 12790997. The next prime is 12791033. The reversal of 12791015 is 51019721.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12790997) and next prime (12791033).

It is a cyclic number.

It is not a de Polignac number, because 12791015 - 2⁶ = 12790951 is a prime.

It is a super-2 number, since 2×12791015² = 327220129460450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279097 + ... + 1279106.

It is an arithmetic number, because the mean of its divisors is an integer number (3837306).

Almost surely, 2^12791015 is an apocalyptic number.

12791015 is a deficient number, since it is larger than the sum of its proper divisors (2558209).

12791015 is an equidigital number, since it uses as much as digits as its factorization.

12791015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558208.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 12791015 is about 3576.4528516395. The cubic root of 12791015 is about 233.8666722881.

The spelling of 12791015 in words is "twelve million, seven hundred ninety-one thousand, fifteen".