513000131 has 4 divisors (see below), whose sum is σ = 586285872. Its totient is φ = 439714392.

The previous prime is 513000113. The next prime is 513000139. The reversal of 513000131 is 131000315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131000315 = 5 ⋅26200063.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513000131 is a prime.

It is a super-2 number, since 2×513000131² = 526338268812034322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513000139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36642860 + ... + 36642873.

It is an arithmetic number, because the mean of its divisors is an integer number (146571468).

Almost surely, 2^513000131 is an apocalyptic number.

513000131 is a deficient number, since it is larger than the sum of its proper divisors (73285741).

513000131 is an equidigital number, since it uses as much as digits as its factorization.

513000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73285740.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 513000131 is about 22649.5061977077. The cubic root of 513000131 is about 800.5205627570.

Adding to 513000131 its reverse (131000315), we get a palindrome (644000446).

The spelling of 513000131 in words is "five hundred thirteen million, one hundred thirty-one", and thus it is an aban number.