13312747 has 8 divisors (see below), whose sum is σ = 15256800. Its totient is φ = 11379264.

The previous prime is 13312727. The next prime is 13312753. The reversal of 13312747 is 74721331.

13312747 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13312747 - 2¹⁹ = 12788459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13312727) 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 7 ways as a sum of consecutive naturals, for example, 279 + ... + 5167.

It is an arithmetic number, because the mean of its divisors is an integer number (1907100).

Almost surely, 2^13312747 is an apocalyptic number.

13312747 is a deficient number, since it is larger than the sum of its proper divisors (1944053).

13312747 is an equidigital number, since it uses as much as digits as its factorization.

13312747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285.

The product of its digits is 3528, while the sum is 28.

The square root of 13312747 is about 3648.6637279969. The cubic root of 13312747 is about 237.0041184517.

It can be divided in two parts, 133 and 12747, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 13312747 in words is "thirteen million, three hundred twelve thousand, seven hundred forty-seven".