512705449 has 3 divisors (see below), whose sum is σ = 512728093. Its totient is φ = 512682806.

The previous prime is 512705441. The next prime is 512705483. The reversal of 512705449 is 944507215.

The square root of 512705449 is 22643.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 512705449 - 2³ = 512705441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512705441) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11322 + ... + 33964.

Almost surely, 2^512705449 is an apocalyptic number.

512705449 is the 22643-rd square number.

512705449 is the 11322-nd centered octagonal number.

It is an amenable number.

512705449 is a deficient number, since it is larger than the sum of its proper divisors (22644).

512705449 is an frugal number, since it uses more digits than its factorization.

512705449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45286 (or 22643 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The cubic root of 512705449 is about 800.3672527352.

The spelling of 512705449 in words is "five hundred twelve million, seven hundred five thousand, four hundred forty-nine".