315751242 has 32 divisors (see below), whose sum is σ = 639160704. Its totient is φ = 103982400.

The previous prime is 315751201. The next prime is 315751243. The reversal of 315751242 is 242157513.

It is not an unprimeable number, because it can be changed into a prime (315751243) 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, 180492 + ... + 182232.

It is an arithmetic number, because the mean of its divisors is an integer number (19973772).

Almost surely, 2^315751242 is an apocalyptic number.

315751242 is an abundant number, since it is smaller than the sum of its proper divisors (323409462).

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

315751242 is a wasteful number, since it uses less digits than its factorization.

315751242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094.

The product of its digits is 8400, while the sum is 30.

The square root of 315751242 is about 17769.3905916888. The cubic root of 315751242 is about 680.9496837292.

The spelling of 315751242 in words is "three hundred fifteen million, seven hundred fifty-one thousand, two hundred forty-two".