189423371 has 2 divisors, whose sum is σ = 189423372. Its totient is φ = 189423370.

The previous prime is 189423343. The next prime is 189423391. The reversal of 189423371 is 173324981.

It is a strong prime.

It is an emirp because it is prime and its reverse (173324981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189423371 - 2⁶ = 189423307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (189423341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94711685 + 94711686.

It is an arithmetic number, because the mean of its divisors is an integer number (94711686).

Almost surely, 2^189423371 is an apocalyptic number.

189423371 is a deficient number, since it is larger than the sum of its proper divisors (1).

189423371 is an equidigital number, since it uses as much as digits as its factorization.

189423371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 189423371 is about 13763.1163258907. The cubic root of 189423371 is about 574.3075429870.

The spelling of 189423371 in words is "one hundred eighty-nine million, four hundred twenty-three thousand, three hundred seventy-one".