315053251 has 2 divisors, whose sum is σ = 315053252. Its totient is φ = 315053250.

The previous prime is 315053237. The next prime is 315053257. The reversal of 315053251 is 152350513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315053251 - 2¹¹ = 315051203 is a prime.

It is equal to p_17022751 and since 315053251 and 17022751 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (315053257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157526625 + 157526626.

It is an arithmetic number, because the mean of its divisors is an integer number (157526626).

Almost surely, 2^315053251 is an apocalyptic number.

315053251 is a deficient number, since it is larger than the sum of its proper divisors (1).

315053251 is an equidigital number, since it uses as much as digits as its factorization.

315053251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 315053251 is about 17749.7394628766. The cubic root of 315053251 is about 680.4475506741.

The spelling of 315053251 in words is "three hundred fifteen million, fifty-three thousand, two hundred fifty-one".