13087012 has 6 divisors (see below), whose sum is σ = 22902278. Its totient is φ = 6543504.

The previous prime is 13086973. The next prime is 13087021. The reversal of 13087012 is 21078031.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 527076 = 3544^2 + 726^2 .

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, 1635873 + ... + 1635880.

Almost surely, 2^13087012 is an apocalyptic number.

It is an amenable number.

13087012 is a deficient number, since it is larger than the sum of its proper divisors (9815266).

13087012 is a wasteful number, since it uses less digits than its factorization.

13087012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271757 (or 3271755 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 13087012 is about 3617.5975453331. The cubic root of 13087012 is about 235.6569035361.

The spelling of 13087012 in words is "thirteen million, eighty-seven thousand, twelve".