189319095 has 72 divisors (see below), whose sum is σ = 398432736. Its totient is φ = 82760832.

The previous prime is 189319037. The next prime is 189319129. The reversal of 189319095 is 590913981.

It is not a de Polignac number, because 189319095 - 2¹¹ = 189317047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 189319095.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 48849 + ... + 52581.

It is an arithmetic number, because the mean of its divisors is an integer number (5533788).

Almost surely, 2^189319095 is an apocalyptic number.

189319095 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189319095 is an abundant number, since it is smaller than the sum of its proper divisors (209113641).

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

189319095 is a wasteful number, since it uses less digits than its factorization.

189319095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781 (or 3771 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 189319095 is about 13759.3275635112. The cubic root of 189319095 is about 574.2021397916.

The spelling of 189319095 in words is "one hundred eighty-nine million, three hundred nineteen thousand, ninety-five".