189833091 has 16 divisors (see below), whose sum is σ = 291385344. Its totient is φ = 107682624.

The previous prime is 189833081. The next prime is 189833131. The reversal of 189833091 is 190338981.

It is a happy number.

189833091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189833091 - 2⁶ = 189833027 is a prime.

It is a super-2 number, since 2×189833091² = 72073204877228562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (189833011) 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, 30115 + ... + 35868.

It is an arithmetic number, because the mean of its divisors is an integer number (18211584).

Almost surely, 2^189833091 is an apocalyptic number.

189833091 is a deficient number, since it is larger than the sum of its proper divisors (101552253).

189833091 is a wasteful number, since it uses less digits than its factorization.

189833091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66130.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 189833091 is about 13777.9929960789. The cubic root of 189833091 is about 574.7213177584.

The spelling of 189833091 in words is "one hundred eighty-nine million, eight hundred thirty-three thousand, ninety-one".