12999015 has 16 divisors (see below), whose sum is σ = 23109600. Its totient is φ = 6932736.

The previous prime is 12998987. The next prime is 12999043. The reversal of 12999015 is 51099921.

It is an interprime number because it is at equal distance from previous prime (12998987) and next prime (12999043).

It is not a de Polignac number, because 12999015 - 2⁸ = 12998759 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 48010 + ... + 48279.

It is an arithmetic number, because the mean of its divisors is an integer number (1444350).

Almost surely, 2^12999015 is an apocalyptic number.

12999015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12999015 is a deficient number, since it is larger than the sum of its proper divisors (10110585).

12999015 is an equidigital number, since it uses as much as digits as its factorization.

12999015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96303 (or 96297 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 36.

The square root of 12999015 is about 3605.4146779531. The cubic root of 12999015 is about 235.1275299947.

The spelling of 12999015 in words is "twelve million, nine hundred ninety-nine thousand, fifteen".