189481534 has 64 divisors (see below), whose sum is σ = 335923200. Its totient is φ = 79340800.

The previous prime is 189481529. The next prime is 189481571. The reversal of 189481534 is 435184981.

189481534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2128962 + ... + 2129050.

It is an arithmetic number, because the mean of its divisors is an integer number (5248800).

Almost surely, 2^189481534 is an apocalyptic number.

189481534 is a deficient number, since it is larger than the sum of its proper divisors (146441666).

189481534 is a wasteful number, since it uses less digits than its factorization.

189481534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249.

The product of its digits is 138240, while the sum is 43.

The square root of 189481534 is about 13765.2291662725. The cubic root of 189481534 is about 574.3663179086.

The spelling of 189481534 in words is "one hundred eighty-nine million, four hundred eighty-one thousand, five hundred thirty-four".