13231873 has 2 divisors, whose sum is σ = 13231874. Its totient is φ = 13231872.

The previous prime is 13231861. The next prime is 13231891. The reversal of 13231873 is 37813231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9591409 + 3640464 = 3097^2 + 1908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13231873 is a prime.

It is not a weakly prime, because it can be changed into another prime (13231843) 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, 6615936 + 6615937.

It is an arithmetic number, because the mean of its divisors is an integer number (6615937).

Almost surely, 2^13231873 is an apocalyptic number.

It is an amenable number.

13231873 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231873 is an equidigital number, since it uses as much as digits as its factorization.

13231873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 13231873 is about 3637.5641575098. The cubic root of 13231873 is about 236.5232155426.

The spelling of 13231873 in words is "thirteen million, two hundred thirty-one thousand, eight hundred seventy-three".