189523 has 2 divisors, whose sum is σ = 189524. Its totient is φ = 189522.

The previous prime is 189517. The next prime is 189529. The reversal of 189523 is 325981.

189523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (189517) and next prime (189529).

It is a cyclic number.

It is not a de Polignac number, because 189523 - 2⁵ = 189491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189491 and 189500.

It is not a weakly prime, because it can be changed into another prime (189529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94761 + 94762.

It is an arithmetic number, because the mean of its divisors is an integer number (94762).

2¹⁸⁹⁵²³ is an apocalyptic number.

189523 is a deficient number, since it is larger than the sum of its proper divisors (1).

189523 is an equidigital number, since it uses as much as digits as its factorization.

189523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 189523 is about 435.3423939843. The cubic root of 189523 is about 57.4408212821.

The spelling of 189523 in words is "one hundred eighty-nine thousand, five hundred twenty-three".