315649212 has 24 divisors (see below), whose sum is σ = 739603200. Its totient is φ = 104775216.

The previous prime is 315649163. The next prime is 315649247. The reversal of 315649212 is 212946513.

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, 52162 + ... + 57897.

It is an arithmetic number, because the mean of its divisors is an integer number (30816800).

Almost surely, 2^315649212 is an apocalyptic number.

It is an amenable number.

315649212 is an abundant number, since it is smaller than the sum of its proper divisors (423953988).

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

315649212 is a wasteful number, since it uses less digits than its factorization.

315649212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110305 (or 110303 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 315649212 is about 17766.5194115223. The cubic root of 315649212 is about 680.8763298018.

It can be divided in two parts, 3 and 15649212, that added together give a triangular number (15649215 = T₅₅₉₄).

The spelling of 315649212 in words is "three hundred fifteen million, six hundred forty-nine thousand, two hundred twelve".