189023339 has 2 divisors, whose sum is σ = 189023340. Its totient is φ = 189023338.

The previous prime is 189023333. The next prime is 189023377. The reversal of 189023339 is 933320981.

It is an a-pointer prime, because the next prime (189023377) can be obtained adding 189023339 to its sum of digits (38).

It is a weak prime.

It is an emirp because it is prime and its reverse (933320981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189023339 - 2⁸ = 189023083 is a prime.

It is not a weakly prime, because it can be changed into another prime (189023333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94511669 + 94511670.

It is an arithmetic number, because the mean of its divisors is an integer number (94511670).

Almost surely, 2^189023339 is an apocalyptic number.

189023339 is a deficient number, since it is larger than the sum of its proper divisors (1).

189023339 is an equidigital number, since it uses as much as digits as its factorization.

189023339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 189023339 is about 13748.5758898877. The cubic root of 189023339 is about 573.9029760292.

The spelling of 189023339 in words is "one hundred eighty-nine million, twenty-three thousand, three hundred thirty-nine".