189697265 has 16 divisors (see below), whose sum is σ = 235915200. Its totient is φ = 146258112.

The previous prime is 189697259. The next prime is 189697279. The reversal of 189697265 is 562796981.

It is a cyclic number.

It is not a de Polignac number, because 189697265 - 2⁸ = 189697009 is a prime.

It is a Curzon 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, 123794 + ... + 125316.

It is an arithmetic number, because the mean of its divisors is an integer number (14744700).

Almost surely, 2^189697265 is an apocalyptic number.

It is an amenable number.

189697265 is a deficient number, since it is larger than the sum of its proper divisors (46217935).

189697265 is a wasteful number, since it uses less digits than its factorization.

189697265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416.

The product of its digits is 1632960, while the sum is 53.

The square root of 189697265 is about 13773.0630217102. The cubic root of 189697265 is about 574.5842135922.

The spelling of 189697265 in words is "one hundred eighty-nine million, six hundred ninety-seven thousand, two hundred sixty-five".