315124240 has 40 divisors (see below), whose sum is σ = 775765080. Its totient is φ = 118634496.

The previous prime is 315124193. The next prime is 315124241. The reversal of 315124240 is 42421513.

It can be written as a sum of positive squares in 4 ways, for example, as 130599184 + 184525056 = 11428^2 + 13584^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (315124241) 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, 114495 + ... + 117214.

It is an arithmetic number, because the mean of its divisors is an integer number (19394127).

Almost surely, 2^315124240 is an apocalyptic number.

It is an amenable number.

315124240 is an abundant number, since it is smaller than the sum of its proper divisors (460640840).

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

315124240 is a wasteful number, since it uses less digits than its factorization.

315124240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231739 (or 231733 counting only the distinct ones).

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

The square root of 315124240 is about 17751.7390697362. The cubic root of 315124240 is about 680.4986538484.

Adding to 315124240 its reverse (42421513), we get a palindrome (357545753).

The spelling of 315124240 in words is "three hundred fifteen million, one hundred twenty-four thousand, two hundred forty".