315440140 has 24 divisors (see below), whose sum is σ = 667486512. Its totient is φ = 125211840.

The previous prime is 315440123. The next prime is 315440179. The reversal of 315440140 is 41044513.

315440140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57579 + ... + 62818.

It is an arithmetic number, because the mean of its divisors is an integer number (27811938).

Almost surely, 2^315440140 is an apocalyptic number.

It is an amenable number.

315440140 is an abundant number, since it is smaller than the sum of its proper divisors (352046372).

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

315440140 is a wasteful number, since it uses less digits than its factorization.

315440140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120537 (or 120535 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 315440140 is about 17760.6345607357. The cubic root of 315440140 is about 680.7259691995.

Adding to 315440140 its reverse (41044513), we get a palindrome (356484653).

The spelling of 315440140 in words is "three hundred fifteen million, four hundred forty thousand, one hundred forty".