190569089 has 2 divisors, whose sum is σ = 190569090. Its totient is φ = 190569088.

The previous prime is 190569073. The next prime is 190569101. The reversal of 190569089 is 980965091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108847489 + 81721600 = 10433^2 + 9040^2 .

It is a cyclic number.

It is not a de Polignac number, because 190569089 - 2⁴ = 190569073 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (190569019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95284544 + 95284545.

It is an arithmetic number, because the mean of its divisors is an integer number (95284545).

Almost surely, 2^190569089 is an apocalyptic number.

It is an amenable number.

190569089 is a deficient number, since it is larger than the sum of its proper divisors (1).

190569089 is an equidigital number, since it uses as much as digits as its factorization.

190569089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 190569089 is about 13804.6763453549. The cubic root of 190569089 is about 575.4631066855.

The spelling of 190569089 in words is "one hundred ninety million, five hundred sixty-nine thousand, eighty-nine".