3163131947 has 2 divisors, whose sum is σ = 3163131948. Its totient is φ = 3163131946.

The previous prime is 3163131943. The next prime is 3163131949. The reversal of 3163131947 is 7491313613.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3163131947 - 2² = 3163131943 is a prime.

Together with 3163131949, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3163131947.

It is not a weakly prime, because it can be changed into another prime (3163131941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1581565973 + 1581565974.

It is an arithmetic number, because the mean of its divisors is an integer number (1581565974).

Almost surely, 2^3163131947 is an apocalyptic number.

3163131947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3163131947 is an equidigital number, since it uses as much as digits as its factorization.

3163131947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 38.

The square root of 3163131947 is about 56241.7278095188. The cubic root of 3163131947 is about 1467.9314306621.

The spelling of 3163131947 in words is "three billion, one hundred sixty-three million, one hundred thirty-one thousand, nine hundred forty-seven".