512564138 has 8 divisors (see below), whose sum is σ = 768949632. Its totient is φ = 256247596.

The previous prime is 512564111. The next prime is 512564191. The reversal of 512564138 is 831465215.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 512564098 and 512564107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9881 + ... + 33507.

It is an arithmetic number, because the mean of its divisors is an integer number (96118704).

Almost surely, 2^512564138 is an apocalyptic number.

512564138 is a deficient number, since it is larger than the sum of its proper divisors (256385494).

512564138 is a wasteful number, since it uses less digits than its factorization.

512564138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34476.

The product of its digits is 28800, while the sum is 35.

The square root of 512564138 is about 22639.8793724702. The cubic root of 512564138 is about 800.2937140269.

The spelling of 512564138 in words is "five hundred twelve million, five hundred sixty-four thousand, one hundred thirty-eight".