189379185 has 16 divisors (see below), whose sum is σ = 307530816. Its totient is φ = 99494208.

The previous prime is 189379147. The next prime is 189379189. The reversal of 189379185 is 581973981.

189379185 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 189379185 - 2²⁰ = 188330609 is a prime.

It is a super-2 number, since 2×189379185² = 71728951422528450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189379189) 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, 93214 + ... + 95223.

It is an arithmetic number, because the mean of its divisors is an integer number (19220676).

Almost surely, 2^189379185 is an apocalyptic number.

189379185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189379185 is a deficient number, since it is larger than the sum of its proper divisors (118151631).

189379185 is a wasteful number, since it uses less digits than its factorization.

189379185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188512.

The product of its digits is 544320, while the sum is 51.

The square root of 189379185 is about 13761.5109998866. The cubic root of 189379185 is about 574.2628840723.

The spelling of 189379185 in words is "one hundred eighty-nine million, three hundred seventy-nine thousand, one hundred eighty-five".