315112402 has 16 divisors (see below), whose sum is σ = 516140352. Its totient is φ = 143093520.

The previous prime is 315112381. The next prime is 315112409. The reversal of 315112402 is 204211513.

It is a self number, because there is not a number n which added to its sum of digits gives 315112402.

It is not an unprimeable number, because it can be changed into a prime (315112409) 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, 18163 + ... + 30985.

It is an arithmetic number, because the mean of its divisors is an integer number (32258772).

Almost surely, 2^315112402 is an apocalyptic number.

315112402 is a deficient number, since it is larger than the sum of its proper divisors (201027950).

315112402 is a wasteful number, since it uses less digits than its factorization.

315112402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13953.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 315112402 is about 17751.4056344843. The cubic root of 315112402 is about 680.4901325067.

Adding to 315112402 its reverse (204211513), we get a palindrome (519323915).

The spelling of 315112402 in words is "three hundred fifteen million, one hundred twelve thousand, four hundred two".