189229049 has 2 divisors, whose sum is σ = 189229050. Its totient is φ = 189229048.

The previous prime is 189229039. The next prime is 189229121. The reversal of 189229049 is 940922981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186131449 + 3097600 = 13643^2 + 1760^2 .

It is a cyclic number.

It is not a de Polignac number, because 189229049 - 2²⁴ = 172451833 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (189229039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94614524 + 94614525.

It is an arithmetic number, because the mean of its divisors is an integer number (94614525).

Almost surely, 2^189229049 is an apocalyptic number.

It is an amenable number.

189229049 is a deficient number, since it is larger than the sum of its proper divisors (1).

189229049 is an equidigital number, since it uses as much as digits as its factorization.

189229049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 189229049 is about 13756.0549940744. The cubic root of 189229049 is about 574.1110892728. Note that the first 3 decimals are identical.

The spelling of 189229049 in words is "one hundred eighty-nine million, two hundred twenty-nine thousand, forty-nine".