513023130 has 48 divisors (see below), whose sum is σ = 1369919304. Its totient is φ = 133107840.

The previous prime is 513023111. The next prime is 513023141. The reversal of 513023130 is 31320315.

513023130 is a `hidden beast` number, since 51 + 302 + 313 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 495908361 + 17114769 = 22269^2 + 4137^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73701 + ... + 80360.

Almost surely, 2^513023130 is an apocalyptic number.

513023130 is an abundant number, since it is smaller than the sum of its proper divisors (856896174).

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

513023130 is a wasteful number, since it uses less digits than its factorization.

513023130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154111 (or 154108 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 513023130 is about 22650.0139072805. The cubic root of 513023130 is about 800.5325256502.

Adding to 513023130 its reverse (31320315), we get a palindrome (544343445).

The spelling of 513023130 in words is "five hundred thirteen million, twenty-three thousand, one hundred thirty".