315671407 has 2 divisors, whose sum is σ = 315671408. Its totient is φ = 315671406.

The previous prime is 315671387. The next prime is 315671437. The reversal of 315671407 is 704176513.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315671407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315671437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157835703 + 157835704.

It is an arithmetic number, because the mean of its divisors is an integer number (157835704).

Almost surely, 2^315671407 is an apocalyptic number.

315671407 is a deficient number, since it is larger than the sum of its proper divisors (1).

315671407 is an equidigital number, since it uses as much as digits as its factorization.

315671407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 315671407 is about 17767.1440304850. The cubic root of 315671407 is about 680.8922881245.

The spelling of 315671407 in words is "three hundred fifteen million, six hundred seventy-one thousand, four hundred seven".