315151847 has 2 divisors, whose sum is σ = 315151848. Its totient is φ = 315151846.

The previous prime is 315151801. The next prime is 315151883. The reversal of 315151847 is 748151513.

It is a strong prime.

It is an emirp because it is prime and its reverse (748151513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315151847 - 2⁶ = 315151783 is a prime.

It is a super-2 number, since 2×315151847² = 198641373335022818, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315151247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157575923 + 157575924.

It is an arithmetic number, because the mean of its divisors is an integer number (157575924).

Almost surely, 2^315151847 is an apocalyptic number.

315151847 is a deficient number, since it is larger than the sum of its proper divisors (1).

315151847 is an equidigital number, since it uses as much as digits as its factorization.

315151847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 35.

The square root of 315151847 is about 17752.5166384938. The cubic root of 315151847 is about 680.5185253523.

The spelling of 315151847 in words is "three hundred fifteen million, one hundred fifty-one thousand, eight hundred forty-seven".