512870903 has 4 divisors (see below), whose sum is σ = 513258720. Its totient is φ = 512483088.

The previous prime is 512870873. The next prime is 512870947. The reversal of 512870903 is 309078215.

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

It is a cyclic number.

It is not a de Polignac number, because 512870903 - 2¹⁰ = 512869879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512870203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191918 + ... + 194571.

It is an arithmetic number, because the mean of its divisors is an integer number (128314680).

Almost surely, 2^512870903 is an apocalyptic number.

512870903 is a deficient number, since it is larger than the sum of its proper divisors (387817).

512870903 is a wasteful number, since it uses less digits than its factorization.

512870903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387816.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 512870903 is about 22646.6532406005. The cubic root of 512870903 is about 800.4533383694.

The spelling of 512870903 in words is "five hundred twelve million, eight hundred seventy thousand, nine hundred three".