315197213 has 8 divisors (see below), whose sum is σ = 332373120. Its totient is φ = 298080000.

The previous prime is 315197209. The next prime is 315197219. The reversal of 315197213 is 312791513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 315197213 - 2² = 315197209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315197213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315197219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3413 + ... + 25338.

It is an arithmetic number, because the mean of its divisors is an integer number (41546640).

Almost surely, 2^315197213 is an apocalyptic number.

It is an amenable number.

315197213 is a deficient number, since it is larger than the sum of its proper divisors (17175907).

315197213 is a wasteful number, since it uses less digits than its factorization.

315197213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29347.

The product of its digits is 5670, while the sum is 32.

The square root of 315197213 is about 17753.7943268474. The cubic root of 315197213 is about 680.5511772549.

The spelling of 315197213 in words is "three hundred fifteen million, one hundred ninety-seven thousand, two hundred thirteen".