654545173 has 4 divisors (see below), whose sum is σ = 659699200. Its totient is φ = 649391148.

The previous prime is 654545161. The next prime is 654545179. The reversal of 654545173 is 371545456.

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 a cyclic number.

It is not a de Polignac number, because 654545173 - 2⁵ = 654545141 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 (654545179) 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, 2576823 + ... + 2577076.

It is an arithmetic number, because the mean of its divisors is an integer number (164924800).

Almost surely, 2^654545173 is an apocalyptic number.

It is an amenable number.

654545173 is a deficient number, since it is larger than the sum of its proper divisors (5154027).

654545173 is a wasteful number, since it uses less digits than its factorization.

654545173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154026.

The product of its digits is 252000, while the sum is 40.

The square root of 654545173 is about 25584.0804603175. The cubic root of 654545173 is about 868.2534976533.

The spelling of 654545173 in words is "six hundred fifty-four million, five hundred forty-five thousand, one hundred seventy-three".