189097065 has 32 divisors (see below), whose sum is σ = 341884800. Its totient is φ = 99138240.

The previous prime is 189097061. The next prime is 189097093. The reversal of 189097065 is 560790981.

It is not a de Polignac number, because 189097065 - 2² = 189097061 is a prime.

It is a super-2 number, since 2×189097065² = 71515399983228450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 189097065.

It is not an unprimeable number, because it can be changed into a prime (189097061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3906 + ... + 19835.

It is an arithmetic number, because the mean of its divisors is an integer number (10683900).

Almost surely, 2^189097065 is an apocalyptic number.

189097065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189097065 is a deficient number, since it is larger than the sum of its proper divisors (152787735).

189097065 is a wasteful number, since it uses less digits than its factorization.

189097065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23814 (or 23808 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 189097065 is about 13751.2568516481. The cubic root of 189097065 is about 573.9775806983.

The spelling of 189097065 in words is "one hundred eighty-nine million, ninety-seven thousand, sixty-five".