189073 has 4 divisors (see below), whose sum is σ = 191808. Its totient is φ = 186340.

The previous prime is 189067. The next prime is 189127. The reversal of 189073 is 370981.

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, and also an emirpimes, since its reverse is a distinct semiprime: 370981 = 13 ⋅28537.

It is a cyclic number.

It is not a de Polignac number, because 189073 - 2⁵ = 189041 is a prime.

It is a Duffinian number.

189073 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (189043) 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, 1261 + ... + 1402.

It is an arithmetic number, because the mean of its divisors is an integer number (47952).

2¹⁸⁹⁰⁷³ is an apocalyptic number.

It is an amenable number.

189073 is a deficient number, since it is larger than the sum of its proper divisors (2735).

189073 is an equidigital number, since it uses as much as digits as its factorization.

189073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 189073 is about 434.8252522566. The cubic root of 189073 is about 57.3953231023.

The spelling of 189073 in words is "one hundred eighty-nine thousand, seventy-three".