13312761 has 24 divisors (see below), whose sum is σ = 22528224. Its totient is φ = 6914880.

The previous prime is 13312753. The next prime is 13312777. The reversal of 13312761 is 16721331.

It is not a de Polignac number, because 13312761 - 2³ = 13312753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13312781) 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 in 23 ways as a sum of consecutive naturals, for example, 2500 + ... + 5733.

It is an arithmetic number, because the mean of its divisors is an integer number (938676).

Almost surely, 2^13312761 is an apocalyptic number.

13312761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13312761 is a deficient number, since it is larger than the sum of its proper divisors (9215463).

13312761 is a wasteful number, since it uses less digits than its factorization.

13312761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8261 (or 8254 counting only the distinct ones).

The product of its digits is 756, while the sum is 24.

The square root of 13312761 is about 3648.6656465070. The cubic root of 13312761 is about 237.0042015314.

The spelling of 13312761 in words is "thirteen million, three hundred twelve thousand, seven hundred sixty-one".