189330109 has 4 divisors (see below), whose sum is σ = 189392704. Its totient is φ = 189267516.

The previous prime is 189330103. The next prime is 189330131. The reversal of 189330109 is 901033981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 189330109 - 2⁵ = 189330077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189330103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26517 + ... + 32890.

It is an arithmetic number, because the mean of its divisors is an integer number (47348176).

Almost surely, 2^189330109 is an apocalyptic number.

It is an amenable number.

189330109 is a deficient number, since it is larger than the sum of its proper divisors (62595).

189330109 is an equidigital number, since it uses as much as digits as its factorization.

189330109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62594.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 189330109 is about 13759.7277952727. The cubic root of 189330109 is about 574.2132746778.

The spelling of 189330109 in words is "one hundred eighty-nine million, three hundred thirty thousand, one hundred nine".