315224540 has 48 divisors (see below), whose sum is σ = 703279584. Its totient is φ = 118272000.

The previous prime is 315224537. The next prime is 315224543. The reversal of 315224540 is 45422513.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (315224537) and next prime (315224543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315224543) 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, 111140 + ... + 113940.

It is an arithmetic number, because the mean of its divisors is an integer number (14651658).

Almost surely, 2^315224540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315224540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351639792).

315224540 is an abundant number, since it is smaller than the sum of its proper divisors (388055044).

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

315224540 is a wasteful number, since it uses less digits than its factorization.

315224540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158 (or 3156 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 315224540 is about 17754.5639202995. The cubic root of 315224540 is about 680.5708441849.

The spelling of 315224540 in words is "three hundred fifteen million, two hundred twenty-four thousand, five hundred forty".