189273569 has 8 divisors (see below), whose sum is σ = 195770880. Its totient is φ = 182800800.

The previous prime is 189273523. The next prime is 189273571. The reversal of 189273569 is 965372981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 189273569 - 2⁸ = 189273313 is a prime.

It is a super-2 number, since 2×189273569² = 71648967843995522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189273599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10292 + ... + 22010.

It is an arithmetic number, because the mean of its divisors is an integer number (24471360).

Almost surely, 2^189273569 is an apocalyptic number.

It is an amenable number.

189273569 is a deficient number, since it is larger than the sum of its proper divisors (6497311).

189273569 is a wasteful number, since it uses less digits than its factorization.

189273569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12271.

The product of its digits is 816480, while the sum is 50.

The square root of 189273569 is about 13757.6730954039. The cubic root of 189273569 is about 574.1561095302.

The spelling of 189273569 in words is "one hundred eighty-nine million, two hundred seventy-three thousand, five hundred sixty-nine".