189273043 has 4 divisors (see below), whose sum is σ = 189379368. Its totient is φ = 189166720.

The previous prime is 189273031. The next prime is 189273059. The reversal of 189273043 is 340372981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 189273043 - 2¹³ = 189264851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189272993 and 189273011.

It is not an unprimeable number, because it can be changed into a prime (189273083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50446 + ... + 54067.

It is an arithmetic number, because the mean of its divisors is an integer number (47344842).

Almost surely, 2^189273043 is an apocalyptic number.

189273043 is a deficient number, since it is larger than the sum of its proper divisors (106325).

189273043 is a wasteful number, since it uses less digits than its factorization.

189273043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106324.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 189273043 is about 13757.6539787858. The cubic root of 189273043 is about 574.1555776609.

The spelling of 189273043 in words is "one hundred eighty-nine million, two hundred seventy-three thousand, forty-three".