189366117 has 4 divisors (see below), whose sum is σ = 252488160. Its totient is φ = 126244076.

The previous prime is 189366097. The next prime is 189366131. The reversal of 189366117 is 711663981.

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 189366117 - 2⁸ = 189365861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189366137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31561017 + ... + 31561022.

It is an arithmetic number, because the mean of its divisors is an integer number (63122040).

Almost surely, 2^189366117 is an apocalyptic number.

It is an amenable number.

189366117 is a deficient number, since it is larger than the sum of its proper divisors (63122043).

189366117 is an equidigital number, since it uses as much as digits as its factorization.

189366117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63122042.

The product of its digits is 54432, while the sum is 42.

The square root of 189366117 is about 13761.0361891828. The cubic root of 189366117 is about 574.2496748769.

The spelling of 189366117 in words is "one hundred eighty-nine million, three hundred sixty-six thousand, one hundred seventeen".