190265189 has 4 divisors (see below), whose sum is σ = 191654124. Its totient is φ = 188876256.

The previous prime is 190265149. The next prime is 190265191. The reversal of 190265189 is 981562091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147428164 + 42837025 = 12142^2 + 6545^2 .

It is a cyclic number.

It is not a de Polignac number, because 190265189 - 2⁸ = 190264933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190265149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694262 + ... + 694535.

It is an arithmetic number, because the mean of its divisors is an integer number (47913531).

Almost surely, 2^190265189 is an apocalyptic number.

It is an amenable number.

190265189 is a deficient number, since it is larger than the sum of its proper divisors (1388935).

190265189 is a wasteful number, since it uses less digits than its factorization.

190265189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388934.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 190265189 is about 13793.6648139644. The cubic root of 190265189 is about 575.1570474615.

The spelling of 190265189 in words is "one hundred ninety million, two hundred sixty-five thousand, one hundred eighty-nine".