513431966 has 8 divisors (see below), whose sum is σ = 770367360. Its totient is φ = 256642848.

The previous prime is 513431953. The next prime is 513431999. The reversal of 513431966 is 669134315.

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

It is a super-2 number, since 2×513431966² = 527224767421250312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27326 + ... + 42113.

It is an arithmetic number, because the mean of its divisors is an integer number (96295920).

Almost surely, 2^513431966 is an apocalyptic number.

513431966 is a deficient number, since it is larger than the sum of its proper divisors (256935394).

513431966 is a wasteful number, since it uses less digits than its factorization.

513431966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73138.

The product of its digits is 58320, while the sum is 38.

The square root of 513431966 is about 22659.0371816633. The cubic root of 513431966 is about 800.7451214022.

The spelling of 513431966 in words is "five hundred thirteen million, four hundred thirty-one thousand, nine hundred sixty-six".