512491 has 6 divisors (see below), whose sum is σ = 596220. Its totient is φ = 439236.

The previous prime is 512467. The next prime is 512497. The reversal of 512491 is 194215.

It is not a de Polignac number, because 512491 - 2¹³ = 504299 is a prime.

It is a Duffinian number.

512491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (512497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5181 + ... + 5278.

It is an arithmetic number, because the mean of its divisors is an integer number (99370).

2⁵¹²⁴⁹¹ is an apocalyptic number.

512491 is a deficient number, since it is larger than the sum of its proper divisors (83729).

512491 is a wasteful number, since it uses less digits than its factorization.

512491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10473 (or 10466 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 512491 is about 715.8847672636. The cubic root of 512491 is about 80.0255647463.

The spelling of 512491 in words is "five hundred twelve thousand, four hundred ninety-one".