854522173 has 4 divisors (see below), whose sum is σ = 857847420. Its totient is φ = 851196928.

The previous prime is 854522147. The next prime is 854522189. The reversal of 854522173 is 371225458.

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

It can be written as a sum of positive squares in 2 ways, for example, as 771839524 + 82682649 = 27782^2 + 9093^2 .

It is a cyclic number.

It is not a de Polignac number, because 854522173 - 2¹⁷ = 854391101 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 (854522143) 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, 1662238 + ... + 1662751.

It is an arithmetic number, because the mean of its divisors is an integer number (214461855).

Almost surely, 2^854522173 is an apocalyptic number.

It is an amenable number.

854522173 is a deficient number, since it is larger than the sum of its proper divisors (3325247).

854522173 is a wasteful number, since it uses less digits than its factorization.

854522173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325246.

The product of its digits is 67200, while the sum is 37.

The square root of 854522173 is about 29232.2112232380. The cubic root of 854522173 is about 948.9451534534.

The spelling of 854522173 in words is "eight hundred fifty-four million, five hundred twenty-two thousand, one hundred seventy-three".