315225130 has 16 divisors (see below), whose sum is σ = 618987744. Its totient is φ = 114627280.

The previous prime is 315225121. The next prime is 315225133. The reversal of 315225130 is 31522513.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (315225133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1432732 + ... + 1432951.

It is an arithmetic number, because the mean of its divisors is an integer number (38686734).

Almost surely, 2^315225130 is an apocalyptic number.

315225130 is a deficient number, since it is larger than the sum of its proper divisors (303762614).

315225130 is a wasteful number, since it uses less digits than its factorization.

315225130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865701.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 315225130 is about 17754.5805357378. The cubic root of 315225130 is about 680.5712687886.

Adding to 315225130 its reverse (31522513), we get a palindrome (346747643).

It can be divided in two parts, 3152 and 25130, that added together give a palindrome (28282).

The spelling of 315225130 in words is "three hundred fifteen million, two hundred twenty-five thousand, one hundred thirty".