315136530 has 96 divisors (see below), whose sum is σ = 838656000. Its totient is φ = 82083456.

The previous prime is 315136517. The next prime is 315136543. The reversal of 315136530 is 35631513.

315136530 is a `hidden beast` number, since 3 + 1 + 5 + 1 + 3 + 653 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (315136517) and next prime (315136543).

It is a super-2 number, since 2×315136530² = 198622065080881800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315136494 and 315136503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 902796 + ... + 903144.

It is an arithmetic number, because the mean of its divisors is an integer number (8736000).

Almost surely, 2^315136530 is an apocalyptic number.

315136530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 315136530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419328000).

315136530 is an abundant number, since it is smaller than the sum of its proper divisors (523519470).

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

315136530 is a wasteful number, since it uses less digits than its factorization.

315136530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 315136530 is about 17752.0852296287. The cubic root of 315136530 is about 680.5075003272.

The spelling of 315136530 in words is "three hundred fifteen million, one hundred thirty-six thousand, five hundred thirty".