315751 has 2 divisors, whose sum is σ = 315752. Its totient is φ = 315750.

The previous prime is 315743. The next prime is 315779. The reversal of 315751 is 157513.

It is a weak prime.

It is an emirp because it is prime and its reverse (157513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315751 - 2³ = 315743 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157875 + 157876.

It is an arithmetic number, because the mean of its divisors is an integer number (157876).

2³¹⁵⁷⁵¹ is an apocalyptic number.

315751 is a deficient number, since it is larger than the sum of its proper divisors (1).

315751 is an equidigital number, since it uses as much as digits as its factorization.

315751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 525, while the sum is 22.

The square root of 315751 is about 561.9172536949. The cubic root of 315751 is about 68.0949509763.

The spelling of 315751 in words is "three hundred fifteen thousand, seven hundred fifty-one".