12938516 has 6 divisors (see below), whose sum is σ = 22642410. Its totient is φ = 6469256.

The previous prime is 12938507. The next prime is 12938521. The reversal of 12938516 is 61583921.

It can be written as a sum of positive squares in only one way, i.e., 9120400 + 3818116 = 3020^2 + 1954^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1617311 + ... + 1617318.

It is an arithmetic number, because the mean of its divisors is an integer number (3773735).

Almost surely, 2^12938516 is an apocalyptic number.

It is an amenable number.

12938516 is a deficient number, since it is larger than the sum of its proper divisors (9703894).

12938516 is a wasteful number, since it uses less digits than its factorization.

12938516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234633 (or 3234631 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 12938516 is about 3597.0148734749. The cubic root of 12938516 is about 234.7621919046.

The spelling of 12938516 in words is "twelve million, nine hundred thirty-eight thousand, five hundred sixteen".