512873173 has 2 divisors, whose sum is σ = 512873174. Its totient is φ = 512873172.

The previous prime is 512873171. The next prime is 512873183. The reversal of 512873173 is 371378215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 508637809 + 4235364 = 22553^2 + 2058^2 .

It is a cyclic number.

It is not a de Polignac number, because 512873173 - 2¹ = 512873171 is a prime.

Together with 512873171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512873171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256436586 + 256436587.

It is an arithmetic number, because the mean of its divisors is an integer number (256436587).

Almost surely, 2^512873173 is an apocalyptic number.

It is an amenable number.

512873173 is a deficient number, since it is larger than the sum of its proper divisors (1).

512873173 is an equidigital number, since it uses as much as digits as its factorization.

512873173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 37.

The square root of 512873173 is about 22646.7033583257. The cubic root of 512873173 is about 800.4545193205.

The spelling of 512873173 in words is "five hundred twelve million, eight hundred seventy-three thousand, one hundred seventy-three".