189533142 has 16 divisors (see below), whose sum is σ = 421184880. Its totient is φ = 63177696.

The previous prime is 189533137. The next prime is 189533147. The reversal of 189533142 is 241335981.

189533142 is a `hidden beast` number, since 1 + 89 + 533 + 1 + 42 = 666.

189533142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (189533137) and next prime (189533147).

It is a junction number, because it is equal to n+sod(n) for n = 189533097 and 189533106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189533147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1754883 + ... + 1754990.

It is an arithmetic number, because the mean of its divisors is an integer number (26324055).

Almost surely, 2^189533142 is an apocalyptic number.

189533142 is an abundant number, since it is smaller than the sum of its proper divisors (231651738).

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

189533142 is a wasteful number, since it uses less digits than its factorization.

189533142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509884 (or 3509878 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 189533142 is about 13767.1036169559. The cubic root of 189533142 is about 574.4184587963.

The spelling of 189533142 in words is "one hundred eighty-nine million, five hundred thirty-three thousand, one hundred forty-two".