512754994 has 4 divisors (see below), whose sum is σ = 769132494. Its totient is φ = 256377496.

The previous prime is 512754989. The next prime is 512755027. The reversal of 512754994 is 499457215.

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

It can be written as a sum of positive squares in only one way, i.e., 304328025 + 208426969 = 17445^2 + 14437^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128188747 + ... + 128188750.

Almost surely, 2^512754994 is an apocalyptic number.

512754994 is a deficient number, since it is larger than the sum of its proper divisors (256377500).

512754994 is a wasteful number, since it uses less digits than its factorization.

512754994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256377499.

The product of its digits is 453600, while the sum is 46.

The square root of 512754994 is about 22644.0940202959. The cubic root of 512754994 is about 800.3930329165.

The spelling of 512754994 in words is "five hundred twelve million, seven hundred fifty-four thousand, nine hundred ninety-four".