431513473 has 2 divisors, whose sum is σ = 431513474. Its totient is φ = 431513472.

The previous prime is 431513399. The next prime is 431513477. The reversal of 431513473 is 374315134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352801089 + 78712384 = 18783^2 + 8872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431513473 is a prime.

It is not a weakly prime, because it can be changed into another prime (431513477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215756736 + 215756737.

It is an arithmetic number, because the mean of its divisors is an integer number (215756737).

Almost surely, 2^431513473 is an apocalyptic number.

It is an amenable number.

431513473 is a deficient number, since it is larger than the sum of its proper divisors (1).

431513473 is an equidigital number, since it uses as much as digits as its factorization.

431513473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 431513473 is about 20772.9023730436. The cubic root of 431513473 is about 755.6687337001.

The spelling of 431513473 in words is "four hundred thirty-one million, five hundred thirteen thousand, four hundred seventy-three".