189166142 has 16 divisors (see below), whose sum is σ = 311019264. Its totient is φ = 85575000.

The previous prime is 189166139. The next prime is 189166171. The reversal of 189166142 is 241661981.

It is a junction number, because it is equal to n+sod(n) for n = 189166096 and 189166105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15734 + ... + 25017.

It is an arithmetic number, because the mean of its divisors is an integer number (19438704).

Almost surely, 2^189166142 is an apocalyptic number.

189166142 is a deficient number, since it is larger than the sum of its proper divisors (121853122).

189166142 is a wasteful number, since it uses less digits than its factorization.

189166142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40975.

The product of its digits is 20736, while the sum is 38.

The square root of 189166142 is about 13753.7682836378. The cubic root of 189166142 is about 574.0474633667.

The spelling of 189166142 in words is "one hundred eighty-nine million, one hundred sixty-six thousand, one hundred forty-two".