190229969 has 2 divisors, whose sum is σ = 190229970. Its totient is φ = 190229968.

The previous prime is 190229953. The next prime is 190229999. The reversal of 190229969 is 969922091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164352400 + 25877569 = 12820^2 + 5087^2 .

It is a cyclic number.

It is not a de Polignac number, because 190229969 - 2⁴ = 190229953 is a prime.

It is a super-2 number, since 2×190229969² = 72374882211481922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (190229999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95114984 + 95114985.

It is an arithmetic number, because the mean of its divisors is an integer number (95114985).

Almost surely, 2^190229969 is an apocalyptic number.

It is an amenable number.

190229969 is a deficient number, since it is larger than the sum of its proper divisors (1).

190229969 is an equidigital number, since it uses as much as digits as its factorization.

190229969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 190229969 is about 13792.3880818370. The cubic root of 190229969 is about 575.1215561535.

The spelling of 190229969 in words is "one hundred ninety million, two hundred twenty-nine thousand, nine hundred sixty-nine".