13136474 has 16 divisors (see below), whose sum is σ = 21623112. Its totient is φ = 5947968.

The previous prime is 13136471. The next prime is 13136483. The reversal of 13136474 is 47463131.

It can be written as a sum of positive squares in 4 ways, for example, as 8265625 + 4870849 = 2875^2 + 2207^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13136471) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3389 + ... + 6144.

Almost surely, 2^13136474 is an apocalyptic number.

13136474 is a deficient number, since it is larger than the sum of its proper divisors (8486638).

13136474 is a wasteful number, since it uses less digits than its factorization.

13136474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9601.

The product of its digits is 6048, while the sum is 29.

The square root of 13136474 is about 3624.4274030528. The cubic root of 13136474 is about 235.9534165453.

The spelling of 13136474 in words is "thirteen million, one hundred thirty-six thousand, four hundred seventy-four".