13056436 has 6 divisors (see below), whose sum is σ = 22848770. Its totient is φ = 6528216.

The previous prime is 13056431. The next prime is 13056437. The reversal of 13056436 is 63465031.

It can be written as a sum of positive squares in only one way, i.e., 13032100 + 24336 = 3610^2 + 156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13056431) by changing a digit.

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 as a sum of consecutive naturals, namely, 1632051 + ... + 1632058.

Almost surely, 2^13056436 is an apocalyptic number.

It is an amenable number.

13056436 is a deficient number, since it is larger than the sum of its proper divisors (9792334).

13056436 is a wasteful number, since it uses less digits than its factorization.

13056436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264113 (or 3264111 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 13056436 is about 3613.3690650140. The cubic root of 13056436 is about 235.4732337957.

The spelling of 13056436 in words is "thirteen million, fifty-six thousand, four hundred thirty-six".