479157431 has 2 divisors, whose sum is σ = 479157432. Its totient is φ = 479157430.

The previous prime is 479157397. The next prime is 479157439. The reversal of 479157431 is 134751974.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479157431 is a prime.

It is a super-2 number, since 2×479157431² = 459183687365039522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479157439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239578715 + 239578716.

It is an arithmetic number, because the mean of its divisors is an integer number (239578716).

Almost surely, 2^479157431 is an apocalyptic number.

479157431 is a deficient number, since it is larger than the sum of its proper divisors (1).

479157431 is an equidigital number, since it uses as much as digits as its factorization.

479157431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The square root of 479157431 is about 21889.6649357636. The cubic root of 479157431 is about 782.5151285068.

The spelling of 479157431 in words is "four hundred seventy-nine million, one hundred fifty-seven thousand, four hundred thirty-one".