315131412 has 48 divisors (see below), whose sum is σ = 762414912. Its totient is φ = 101233920.

The previous prime is 315131393. The next prime is 315131417. The reversal of 315131412 is 214131513.

It is a super-2 number, since 2×315131412² = 198615613658227488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315131417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36978 + ... + 44694.

It is an arithmetic number, because the mean of its divisors is an integer number (15883644).

Almost surely, 2^315131412 is an apocalyptic number.

It is an amenable number.

315131412 is an abundant number, since it is smaller than the sum of its proper divisors (447283500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315131412 is a wasteful number, since it uses less digits than its factorization.

315131412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7848 (or 7846 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 315131412 is about 17751.9410769639. The cubic root of 315131412 is about 680.5038163618.

Adding to 315131412 its reverse (214131513), we get a palindrome (529262925).

The spelling of 315131412 in words is "three hundred fifteen million, one hundred thirty-one thousand, four hundred twelve".