315491211 has 12 divisors (see below), whose sum is σ = 520810992. Its totient is φ = 180280656.

The previous prime is 315491179. The next prime is 315491243. The reversal of 315491211 is 112194513.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (315491179) and next prime (315491243).

It is not a de Polignac number, because 315491211 - 2⁵ = 315491179 is a prime.

It is a super-4 number, since 4×315491211⁴ (a number of 35 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (315491251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2503836 + ... + 2503961.

It is an arithmetic number, because the mean of its divisors is an integer number (43400916).

Almost surely, 2^315491211 is an apocalyptic number.

315491211 is a deficient number, since it is larger than the sum of its proper divisors (205319781).

315491211 is a wasteful number, since it uses less digits than its factorization.

315491211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007810 (or 5007807 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 315491211 is about 17762.0722608597. The cubic root of 315491211 is about 680.7627046215.

The spelling of 315491211 in words is "three hundred fifteen million, four hundred ninety-one thousand, two hundred eleven".