513123152 has 20 divisors (see below), whose sum is σ = 995600340. Its totient is φ = 256194048.

The previous prime is 513123133. The next prime is 513123179. The reversal of 513123152 is 251321315.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 311028496 + 202094656 = 17636^2 + 14216^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11273 + ... + 33960.

It is an arithmetic number, because the mean of its divisors is an integer number (49780017).

Almost surely, 2^513123152 is an apocalyptic number.

It is an amenable number.

513123152 is a deficient number, since it is larger than the sum of its proper divisors (482477188).

513123152 is a wasteful number, since it uses less digits than its factorization.

513123152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45950 (or 45944 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 513123152 is about 22652.2217894846. The cubic root of 513123152 is about 800.5845477758.

Adding to 513123152 its reverse (251321315), we get a palindrome (764444467).

The spelling of 513123152 in words is "five hundred thirteen million, one hundred twenty-three thousand, one hundred fifty-two".