190166889 has 16 divisors (see below), whose sum is σ = 276920064. Its totient is φ = 115122000.

The previous prime is 190166881. The next prime is 190166903. The reversal of 190166889 is 988661091.

It is not a de Polignac number, because 190166889 - 2³ = 190166881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190166881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31942 + ... + 37424.

It is an arithmetic number, because the mean of its divisors is an integer number (17307504).

Almost surely, 2^190166889 is an apocalyptic number.

It is an amenable number.

190166889 is a deficient number, since it is larger than the sum of its proper divisors (86753175).

190166889 is a wasteful number, since it uses less digits than its factorization.

190166889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6548.

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 190166889 is about 13790.1011236321. The cubic root of 190166889 is about 575.0579792827.

The spelling of 190166889 in words is "one hundred ninety million, one hundred sixty-six thousand, eight hundred eighty-nine".