189553099 has 2 divisors, whose sum is σ = 189553100. Its totient is φ = 189553098.

The previous prime is 189553079. The next prime is 189553103. The reversal of 189553099 is 990355981.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189553099 - 2⁷ = 189552971 is a prime.

It is not a weakly prime, because it can be changed into another prime (189553079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94776549 + 94776550.

It is an arithmetic number, because the mean of its divisors is an integer number (94776550).

Almost surely, 2^189553099 is an apocalyptic number.

189553099 is a deficient number, since it is larger than the sum of its proper divisors (1).

189553099 is an equidigital number, since it uses as much as digits as its factorization.

189553099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 437400, while the sum is 49.

The square root of 189553099 is about 13767.8284053804. The cubic root of 189553099 is about 574.4386193282.

The spelling of 189553099 in words is "one hundred eighty-nine million, five hundred fifty-three thousand, ninety-nine".