315225400 has 48 divisors (see below), whose sum is σ = 837602640. Its totient is φ = 108076800.

The previous prime is 315225367. The next prime is 315225403. The reversal of 315225400 is 4522513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315225403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111181 + ... + 113980.

It is an arithmetic number, because the mean of its divisors is an integer number (17450055).

Almost surely, 2^315225400 is an apocalyptic number.

It is an amenable number.

315225400 is an abundant number, since it is smaller than the sum of its proper divisors (522377240).

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

315225400 is a wasteful number, since it uses less digits than its factorization.

315225400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225184 (or 225175 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 315225400 is about 17754.5881394078. The cubic root of 315225400 is about 680.5714630986.

Adding to 315225400 its reverse (4522513), we get a palindrome (319747913).

The spelling of 315225400 in words is "three hundred fifteen million, two hundred twenty-five thousand, four hundred".