513339973 has 8 divisors (see below), whose sum is σ = 545256792. Its totient is φ = 481614336.

The previous prime is 513339947. The next prime is 513340027. The reversal of 513339973 is 379933315.

It can be written as a sum of positive squares in 4 ways, for example, as 324 + 513339649 = 18^2 + 22657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513339973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513339913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42240 + ... + 53017.

It is an arithmetic number, because the mean of its divisors is an integer number (68157099).

Almost surely, 2^513339973 is an apocalyptic number.

It is an amenable number.

513339973 is a deficient number, since it is larger than the sum of its proper divisors (31916819).

513339973 is a wasteful number, since it uses less digits than its factorization.

513339973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95591.

The product of its digits is 229635, while the sum is 43.

The square root of 513339973 is about 22657.0071501070. The cubic root of 513339973 is about 800.6972946528.

The spelling of 513339973 in words is "five hundred thirteen million, three hundred thirty-nine thousand, nine hundred seventy-three".