189289134 has 48 divisors (see below), whose sum is σ = 433414800. Its totient is φ = 59539968.

The previous prime is 189289127. The next prime is 189289141. The reversal of 189289134 is 431982981.

It is an interprime number because it is at equal distance from previous prime (189289127) and next prime (189289141).

It is a self number, because there is not a number n which added to its sum of digits gives 189289134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99262 + ... + 101150.

It is an arithmetic number, because the mean of its divisors is an integer number (9029475).

Almost surely, 2^189289134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189289134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216707400).

189289134 is an abundant number, since it is smaller than the sum of its proper divisors (244125666).

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

189289134 is a wasteful number, since it uses less digits than its factorization.

189289134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209 (or 2206 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 189289134 is about 13758.2387680982. The cubic root of 189289134 is about 574.1718477637.

The spelling of 189289134 in words is "one hundred eighty-nine million, two hundred eighty-nine thousand, one hundred thirty-four".