189685134 has 24 divisors (see below), whose sum is σ = 411378552. Its totient is φ = 63167760.

The previous prime is 189685127. The next prime is 189685141. The reversal of 189685134 is 431586981.

It is an interprime number because it is at equal distance from previous prime (189685127) and next prime (189685141).

It is a self number, because there is not a number n which added to its sum of digits gives 189685134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16797 + ... + 25719.

It is an arithmetic number, because the mean of its divisors is an integer number (17140773).

Almost surely, 2^189685134 is an apocalyptic number.

189685134 is an abundant number, since it is smaller than the sum of its proper divisors (221693418).

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

189685134 is a wasteful number, since it uses less digits than its factorization.

189685134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10112 (or 10109 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 189685134 is about 13772.6226260651. The cubic root of 189685134 is about 574.5719652524.

The spelling of 189685134 in words is "one hundred eighty-nine million, six hundred eighty-five thousand, one hundred thirty-four".