512546961 has 4 divisors (see below), whose sum is σ = 683395952. Its totient is φ = 341697972.

The previous prime is 512546921. The next prime is 512547011. The reversal of 512546961 is 169645215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 512546961 - 2⁶ = 512546897 is a prime.

It is the 22640-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512546911) by changing a digit.

It is a nontrivial repunit in base 22639.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85424491 + ... + 85424496.

It is an arithmetic number, because the mean of its divisors is an integer number (170848988).

Almost surely, 2^512546961 is an apocalyptic number.

It is an amenable number.

512546961 is a deficient number, since it is larger than the sum of its proper divisors (170848991).

512546961 is a wasteful number, since it uses less digits than its factorization.

512546961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170848990.

The product of its digits is 64800, while the sum is 39.

The square root of 512546961 is about 22639.5000165640. The cubic root of 512546961 is about 800.2847741384.

The spelling of 512546961 in words is "five hundred twelve million, five hundred forty-six thousand, nine hundred sixty-one".