13031479 has 2 divisors, whose sum is σ = 13031480. Its totient is φ = 13031478.

The previous prime is 13031467. The next prime is 13031489. The reversal of 13031479 is 97413031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13031479 - 2⁷ = 13031351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13031419) 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 as a sum of consecutive naturals, namely, 6515739 + 6515740.

It is an arithmetic number, because the mean of its divisors is an integer number (6515740).

Almost surely, 2^13031479 is an apocalyptic number.

13031479 is a deficient number, since it is larger than the sum of its proper divisors (1).

13031479 is an equidigital number, since it uses as much as digits as its factorization.

13031479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13031479 is about 3609.9139878950. The cubic root of 13031479 is about 235.3231046727.

The spelling of 13031479 in words is "thirteen million, thirty-one thousand, four hundred seventy-nine".