513152131 has 4 divisors (see below), whose sum is σ = 515393200. Its totient is φ = 510911064.

The previous prime is 513152117. The next prime is 513152137. The reversal of 513152131 is 131251315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 513152131 - 2⁵ = 513152099 is a prime.

It is a super-3 number, since 3×513152131³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513152137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120191 + ... + 1120648.

It is an arithmetic number, because the mean of its divisors is an integer number (128848300).

Almost surely, 2^513152131 is an apocalyptic number.

513152131 is a deficient number, since it is larger than the sum of its proper divisors (2241069).

513152131 is a wasteful number, since it uses less digits than its factorization.

513152131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241068.

The product of its digits is 450, while the sum is 22.

The square root of 513152131 is about 22652.8614307332. The cubic root of 513152131 is about 800.5996186887.

The spelling of 513152131 in words is "five hundred thirteen million, one hundred fifty-two thousand, one hundred thirty-one".