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189541 = 1117231

189541 has 4 divisors (see below), whose sum is σ = 206784. Its totient is φ = 172300.

The previous prime is 189529. The next prime is 189547. The reversal of 189541 is 145981.

It can be divided in two parts, 1895 and 41, that added together give a square (1936 = 442).

It is a happy number.

189541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 189541 - 25 = 189509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8605 + ... + 8626.

It is an arithmetic number, because the mean of its divisors is an integer number (51696).

2189541 is an apocalyptic number.

189541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

189541 is a deficient number, since it is larger than the sum of its proper divisors (17243).

189541 is a wasteful number, since it uses less digits than its factorization.

189541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17242.

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

The square root of 189541 is about 435.3630668764. The cubic root of 189541 is about 57.4426397105.

The spelling of 189541 in words is "one hundred eighty-nine thousand, five hundred forty-one".

Divisors: 1 11 17231 189541