315223412 has 24 divisors (see below), whose sum is σ = 631768704. Its totient is φ = 134812512.

The previous prime is 315223379. The next prime is 315223453. The reversal of 315223412 is 214322513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2078 + ... + 25194.

It is an arithmetic number, because the mean of its divisors is an integer number (26323696).

Almost surely, 2^315223412 is an apocalyptic number.

It is an amenable number.

315223412 is an abundant number, since it is smaller than the sum of its proper divisors (316545292).

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

315223412 is a wasteful number, since it uses less digits than its factorization.

315223412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23615 (or 23613 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 315223412 is about 17754.5321537910. The cubic root of 315223412 is about 680.5700323987.

Adding to 315223412 its reverse (214322513), we get a palindrome (529545925).

The spelling of 315223412 in words is "three hundred fifteen million, two hundred twenty-three thousand, four hundred twelve".