189022243 has 2 divisors, whose sum is σ = 189022244. Its totient is φ = 189022242.

The previous prime is 189022231. The next prime is 189022247. The reversal of 189022243 is 342220981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189022243 - 2²¹ = 186925091 is a prime.

It is not a weakly prime, because it can be changed into another prime (189022247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94511121 + 94511122.

It is an arithmetic number, because the mean of its divisors is an integer number (94511122).

Almost surely, 2^189022243 is an apocalyptic number.

189022243 is a deficient number, since it is larger than the sum of its proper divisors (1).

189022243 is an equidigital number, since it uses as much as digits as its factorization.

189022243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 189022243 is about 13748.5360311562. The cubic root of 189022243 is about 573.9018668207.

The spelling of 189022243 in words is "one hundred eighty-nine million, twenty-two thousand, two hundred forty-three".