13811264 has 14 divisors (see below), whose sum is σ = 27406854. Its totient is φ = 6905600.

The previous prime is 13811263. The next prime is 13811269. The reversal of 13811264 is 46211831.

It can be written as a sum of positive squares in only one way, i.e., 12390400 + 1420864 = 3520^2 + 1192^2 .

It is not an unprimeable number, because it can be changed into a prime (13811261) 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 as a sum of consecutive naturals, namely, 107837 + ... + 107964.

Almost surely, 2^13811264 is an apocalyptic number.

It is an amenable number.

13811264 is a deficient number, since it is larger than the sum of its proper divisors (13595590).

13811264 is an equidigital number, since it uses as much as digits as its factorization.

13811264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215813 (or 215803 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 13811264 is about 3716.3508983948. The cubic root of 13811264 is about 239.9262736504.

The spelling of 13811264 in words is "thirteen million, eight hundred eleven thousand, two hundred sixty-four".