13160731 has 2 divisors, whose sum is σ = 13160732. Its totient is φ = 13160730.

The previous prime is 13160701. The next prime is 13160821. The reversal of 13160731 is 13706131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13160731 - 2⁵ = 13160699 is a prime.

It is a super-2 number, since 2×13160731² = 346409680908722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13160701) 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, 6580365 + 6580366.

It is an arithmetic number, because the mean of its divisors is an integer number (6580366).

Almost surely, 2^13160731 is an apocalyptic number.

13160731 is a deficient number, since it is larger than the sum of its proper divisors (1).

13160731 is an equidigital number, since it uses as much as digits as its factorization.

13160731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 13160731 is about 3627.7721813807. The cubic root of 13160731 is about 236.0985595706.

Adding to 13160731 its reverse (13706131), we get a palindrome (26866862).

The spelling of 13160731 in words is "thirteen million, one hundred sixty thousand, seven hundred thirty-one".