189372229 has 2 divisors, whose sum is σ = 189372230. Its totient is φ = 189372228.

The previous prime is 189372203. The next prime is 189372263. The reversal of 189372229 is 922273981.

189372229 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., 188512900 + 859329 = 13730^2 + 927^2 .

It is a cyclic number.

It is not a de Polignac number, because 189372229 - 2⁷ = 189372101 is a prime.

It is a super-2 number, since 2×189372229² = 71723682232856882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189372329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94686114 + 94686115.

It is an arithmetic number, because the mean of its divisors is an integer number (94686115).

Almost surely, 2^189372229 is an apocalyptic number.

It is an amenable number.

189372229 is a deficient number, since it is larger than the sum of its proper divisors (1).

189372229 is an equidigital number, since it uses as much as digits as its factorization.

189372229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 189372229 is about 13761.2582636909. The cubic root of 189372229 is about 574.2558529906.

The spelling of 189372229 in words is "one hundred eighty-nine million, three hundred seventy-two thousand, two hundred twenty-nine".