189417193 has 12 divisors (see below), whose sum is σ = 225469200. Its totient is φ = 158580072.

The previous prime is 189417169. The next prime is 189417209. The reversal of 189417193 is 391714981.

189417193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189417193 - 2¹³ = 189409001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189417113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42843 + ... + 47056.

It is an arithmetic number, because the mean of its divisors is an integer number (18789100).

Almost surely, 2^189417193 is an apocalyptic number.

It is an amenable number.

189417193 is a deficient number, since it is larger than the sum of its proper divisors (36052007).

189417193 is an equidigital number, since it uses as much as digits as its factorization.

189417193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89956 (or 89949 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The square root of 189417193 is about 13762.8918836123. The cubic root of 189417193 is about 574.3012992826.

The spelling of 189417193 in words is "one hundred eighty-nine million, four hundred seventeen thousand, one hundred ninety-three".