189016173 has 10 divisors (see below), whose sum is σ = 282357614. Its totient is φ = 126010728.

The previous prime is 189016169. The next prime is 189016189. The reversal of 189016173 is 371610981.

It can be written as a sum of positive squares in only one way, i.e., 158080329 + 30935844 = 12573^2 + 5562^2 .

It is not a de Polignac number, because 189016173 - 2² = 189016169 is a prime.

It is a super-3 number, since 3×189016173³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189016103) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1166686 + ... + 1166847.

Almost surely, 2^189016173 is an apocalyptic number.

It is an amenable number.

189016173 is a deficient number, since it is larger than the sum of its proper divisors (93341441).

189016173 is an equidigital number, since it uses as much as digits as its factorization.

189016173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333545 (or 2333536 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 189016173 is about 13748.3152786078. The cubic root of 189016173 is about 573.8957235902.

The spelling of 189016173 in words is "one hundred eighty-nine million, sixteen thousand, one hundred seventy-three".