315042140 has 48 divisors (see below), whose sum is σ = 757993152. Its totient is φ = 107744256.

The previous prime is 315042139. The next prime is 315042151. The reversal of 315042140 is 41240513.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58022 + ... + 63218.

It is an arithmetic number, because the mean of its divisors is an integer number (15791524).

Almost surely, 2^315042140 is an apocalyptic number.

It is an amenable number.

315042140 is an abundant number, since it is smaller than the sum of its proper divisors (442951012).

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

315042140 is a wasteful number, since it uses less digits than its factorization.

315042140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646 (or 5644 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 315042140 is about 17749.4264696074. The cubic root of 315042140 is about 680.4395514532.

Adding to 315042140 its reverse (41240513), we get a palindrome (356282653).

The spelling of 315042140 in words is "three hundred fifteen million, forty-two thousand, one hundred forty".