196290189 has 16 divisors (see below), whose sum is σ = 296989440. Its totient is φ = 128075040.

The previous prime is 196290169. The next prime is 196290191. The reversal of 196290189 is 981092691.

196290189 is a `hidden beast` number, since 1 + 9 + 629 + 0 + 18 + 9 = 666.

It is not a de Polignac number, because 196290189 - 2⁹ = 196289677 is a prime.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (196290139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76072 + ... + 78609.

It is an arithmetic number, because the mean of its divisors is an integer number (18561840).

Almost surely, 2^196290189 is an apocalyptic number.

It is an amenable number.

196290189 is a deficient number, since it is larger than the sum of its proper divisors (100699251).

196290189 is a wasteful number, since it uses less digits than its factorization.

196290189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154737 (or 154731 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 196290189 is about 14010.3600596130. The cubic root of 196290189 is about 581.1651064362.

The spelling of 196290189 in words is "one hundred ninety-six million, two hundred ninety thousand, one hundred eighty-nine".