189244533 has 4 divisors (see below), whose sum is σ = 252326048. Its totient is φ = 126163020.

The previous prime is 189244511. The next prime is 189244537. The reversal of 189244533 is 335442981.

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 not a de Polignac number, because 189244533 - 2⁵ = 189244501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189244491 and 189244500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189244537) 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, 31540753 + ... + 31540758.

It is an arithmetic number, because the mean of its divisors is an integer number (63081512).

Almost surely, 2^189244533 is an apocalyptic number.

It is an amenable number.

189244533 is a deficient number, since it is larger than the sum of its proper divisors (63081515).

189244533 is an equidigital number, since it uses as much as digits as its factorization.

189244533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63081514.

The product of its digits is 103680, while the sum is 39.

The square root of 189244533 is about 13756.6177892678. The cubic root of 189244533 is about 574.1267480625.

The spelling of 189244533 in words is "one hundred eighty-nine million, two hundred forty-four thousand, five hundred thirty-three".