189597117 has 8 divisors (see below), whose sum is σ = 253804320. Its totient is φ = 125894000.

The previous prime is 189597113. The next prime is 189597127. The reversal of 189597117 is 711795981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189597117 - 2² = 189597113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189597113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125142 + ... + 126647.

It is an arithmetic number, because the mean of its divisors is an integer number (31725540).

Almost surely, 2^189597117 is an apocalyptic number.

It is an amenable number.

189597117 is a deficient number, since it is larger than the sum of its proper divisors (64207203).

189597117 is a wasteful number, since it uses less digits than its factorization.

189597117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252043.

The product of its digits is 158760, while the sum is 48.

The square root of 189597117 is about 13769.4268943918. The cubic root of 189597117 is about 574.4830812446.

The spelling of 189597117 in words is "one hundred eighty-nine million, five hundred ninety-seven thousand, one hundred seventeen".