189140190 has 16 divisors (see below), whose sum is σ = 453936528. Its totient is φ = 50437376.

The previous prime is 189140177. The next prime is 189140197. The reversal of 189140190 is 91041981.

189140190 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×189140190² = 71548022946472200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189140197) 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, 3152307 + ... + 3152366.

It is an arithmetic number, because the mean of its divisors is an integer number (28371033).

Almost surely, 2^189140190 is an apocalyptic number.

189140190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189140190 is an abundant number, since it is smaller than the sum of its proper divisors (264796338).

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

189140190 is a wasteful number, since it uses less digits than its factorization.

189140190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6304683.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 189140190 is about 13752.8248007455. The cubic root of 189140190 is about 574.0212106752.

The spelling of 189140190 in words is "one hundred eighty-nine million, one hundred forty thousand, one hundred ninety".