12993515 has 16 divisors (see below), whose sum is σ = 16099776. Its totient is φ = 10060800.

The previous prime is 12993509. The next prime is 12993571. The reversal of 12993515 is 51539921.

It is not a de Polignac number, because 12993515 - 2⁴ = 12993499 is a prime.

It is a Duffinian 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, 49274 + ... + 49536.

It is an arithmetic number, because the mean of its divisors is an integer number (1006236).

Almost surely, 2^12993515 is an apocalyptic number.

12993515 is a deficient number, since it is larger than the sum of its proper divisors (3106261).

12993515 is a wasteful number, since it uses less digits than its factorization.

12993515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550.

The product of its digits is 12150, while the sum is 35.

The square root of 12993515 is about 3604.6518555888. The cubic root of 12993515 is about 235.0943637934.

The spelling of 12993515 in words is "twelve million, nine hundred ninety-three thousand, five hundred fifteen".