189174066 has 32 divisors (see below), whose sum is σ = 386529408. Its totient is φ = 61701120.

The previous prime is 189174053. The next prime is 189174101. The reversal of 189174066 is 660471981.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182971 + ... + 184001.

It is an arithmetic number, because the mean of its divisors is an integer number (12079044).

Almost surely, 2^189174066 is an apocalyptic number.

189174066 is an abundant number, since it is smaller than the sum of its proper divisors (197355342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189174066 is a wasteful number, since it uses less digits than its factorization.

189174066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 189174066 is about 13754.0563471290. The cubic root of 189174066 is about 574.0554786992.

It can be divided in two parts, 1891 and 74066, that added together give a palindrome (75957).

The spelling of 189174066 in words is "one hundred eighty-nine million, one hundred seventy-four thousand, sixty-six".