190979069 has 2 divisors, whose sum is σ = 190979070. Its totient is φ = 190979068.

The previous prime is 190979027. The next prime is 190979077. The reversal of 190979069 is 960979091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175218169 + 15760900 = 13237^2 + 3970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190979069 is a prime.

It is a super-2 number, since 2×190979069² = 72946009592213522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190979969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95489534 + 95489535.

It is an arithmetic number, because the mean of its divisors is an integer number (95489535).

Almost surely, 2^190979069 is an apocalyptic number.

It is an amenable number.

190979069 is a deficient number, since it is larger than the sum of its proper divisors (1).

190979069 is an equidigital number, since it uses as much as digits as its factorization.

190979069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 50.

The square root of 190979069 is about 13819.5176833347. The cubic root of 190979069 is about 575.8754844743.

The spelling of 190979069 in words is "one hundred ninety million, nine hundred seventy-nine thousand, sixty-nine".