315254197 has 2 divisors, whose sum is σ = 315254198. Its totient is φ = 315254196.

The previous prime is 315254189. The next prime is 315254209. The reversal of 315254197 is 791452513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286083396 + 29170801 = 16914^2 + 5401^2 .

It is a cyclic number.

It is not a de Polignac number, because 315254197 - 2³ = 315254189 is a prime.

It is a super-2 number, since 2×315254197² = 198770417452229618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315254117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157627098 + 157627099.

It is an arithmetic number, because the mean of its divisors is an integer number (157627099).

Almost surely, 2^315254197 is an apocalyptic number.

It is an amenable number.

315254197 is a deficient number, since it is larger than the sum of its proper divisors (1).

315254197 is an equidigital number, since it uses as much as digits as its factorization.

315254197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 37.

The square root of 315254197 is about 17755.3990943600. The cubic root of 315254197 is about 680.5921867032.

The spelling of 315254197 in words is "three hundred fifteen million, two hundred fifty-four thousand, one hundred ninety-seven".