189442361 has 2 divisors, whose sum is σ = 189442362. Its totient is φ = 189442360.

The previous prime is 189442343. The next prime is 189442397. The reversal of 189442361 is 163244981.

189442361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173080336 + 16362025 = 13156^2 + 4045^2 .

It is a cyclic number.

It is not a de Polignac number, because 189442361 - 2¹⁰ = 189441337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (189442061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94721180 + 94721181.

It is an arithmetic number, because the mean of its divisors is an integer number (94721181).

Almost surely, 2^189442361 is an apocalyptic number.

It is an amenable number.

189442361 is a deficient number, since it is larger than the sum of its proper divisors (1).

189442361 is an equidigital number, since it uses as much as digits as its factorization.

189442361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 189442361 is about 13763.8061959619. The cubic root of 189442361 is about 574.3267340997.

The spelling of 189442361 in words is "one hundred eighty-nine million, four hundred forty-two thousand, three hundred sixty-one".