189125020 has 24 divisors (see below), whose sum is σ = 453900384. Its totient is φ = 64842816.

The previous prime is 189124981. The next prime is 189125029. The reversal of 189125020 is 20521981.

189125020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 189125020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189125029) 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, 675307 + ... + 675586.

It is an arithmetic number, because the mean of its divisors is an integer number (18912516).

Almost surely, 2^189125020 is an apocalyptic number.

189125020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189125020 is an abundant number, since it is smaller than the sum of its proper divisors (264775364).

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

189125020 is a wasteful number, since it uses less digits than its factorization.

189125020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350909 (or 1350907 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 189125020 is about 13752.2732666276. The cubic root of 189125020 is about 574.0058637966.

It can be divided in two parts, 18912 and 5020, that added together give a palindrome (23932).

The spelling of 189125020 in words is "one hundred eighty-nine million, one hundred twenty-five thousand, twenty".