513125124 has 48 divisors (see below), whose sum is σ = 1270563840. Its totient is φ = 160827040.

The previous prime is 513125099. The next prime is 513125131. The reversal of 513125124 is 421521315.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 513125094 and 513125103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529 + ... + 32039.

It is an arithmetic number, because the mean of its divisors is an integer number (26470080).

Almost surely, 2^513125124 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 513125124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635281920).

513125124 is an abundant number, since it is smaller than the sum of its proper divisors (757438716).

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

513125124 is a wasteful number, since it uses less digits than its factorization.

513125124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31600 (or 31598 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 513125124 is about 22652.2653171819. The cubic root of 513125124 is about 800.5855733586.

Adding to 513125124 its reverse (421521315), we get a palindrome (934646439).

The spelling of 513125124 in words is "five hundred thirteen million, one hundred twenty-five thousand, one hundred twenty-four".