512730881 has 8 divisors (see below), whose sum is σ = 576179520. Its totient is φ = 452711952.

The previous prime is 512730853. The next prime is 512730887. The reversal of 512730881 is 188037215.

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

It is a cyclic number.

It is not a de Polignac number, because 512730881 - 2¹⁰ = 512729857 is a prime.

It is a super-2 number, since 2×512730881² = 525785912662072322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512730887) 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, 857111 + ... + 857708.

It is an arithmetic number, because the mean of its divisors is an integer number (72022440).

Almost surely, 2^512730881 is an apocalyptic number.

It is an amenable number.

512730881 is a deficient number, since it is larger than the sum of its proper divisors (63448639).

512730881 is a wasteful number, since it uses less digits than its factorization.

512730881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714855.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 512730881 is about 22643.5615793982. The cubic root of 512730881 is about 800.3804861966.

The spelling of 512730881 in words is "five hundred twelve million, seven hundred thirty thousand, eight hundred eighty-one".