189672165 has 16 divisors (see below), whose sum is σ = 337195200. Its totient is φ = 101158416.

The previous prime is 189672113. The next prime is 189672173. The reversal of 189672165 is 561276981.

It is not a de Polignac number, because 189672165 - 2¹² = 189668069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 189672165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 702355 + ... + 702624.

It is an arithmetic number, because the mean of its divisors is an integer number (21074700).

Almost surely, 2^189672165 is an apocalyptic number.

189672165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189672165 is a deficient number, since it is larger than the sum of its proper divisors (147523035).

189672165 is a wasteful number, since it uses less digits than its factorization.

189672165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404993 (or 1404987 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 189672165 is about 13772.1517926575. The cubic root of 189672165 is about 574.5588702293.

The spelling of 189672165 in words is "one hundred eighty-nine million, six hundred seventy-two thousand, one hundred sixty-five".