12536516 has 12 divisors (see below), whose sum is σ = 21966588. Its totient is φ = 6260352.

The previous prime is 12536507. The next prime is 12536533. The reversal of 12536516 is 61563521.

It can be written as a sum of positive squares in 2 ways, for example, as 5982916 + 6553600 = 2446^2 + 2560^2 .

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, 2960 + ... + 5816.

It is an arithmetic number, because the mean of its divisors is an integer number (1830549).

Almost surely, 2^12536516 is an apocalyptic number.

It is an amenable number.

12536516 is a deficient number, since it is larger than the sum of its proper divisors (9430072).

12536516 is a wasteful number, since it uses less digits than its factorization.

12536516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958 (or 3956 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 12536516 is about 3540.6942821995. The cubic root of 12536516 is about 232.3052116545.

The spelling of 12536516 in words is "twelve million, five hundred thirty-six thousand, five hundred sixteen".