190729169 has 2 divisors, whose sum is σ = 190729170. Its totient is φ = 190729168.

The previous prime is 190729159. The next prime is 190729183. The reversal of 190729169 is 961927091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163532944 + 27196225 = 12788^2 + 5215^2 .

It is a cyclic number.

It is not a de Polignac number, because 190729169 - 2⁸ = 190728913 is a prime.

It is a super-2 number, since 2×190729169² = 72755231814861122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190729159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95364584 + 95364585.

It is an arithmetic number, because the mean of its divisors is an integer number (95364585).

Almost surely, 2^190729169 is an apocalyptic number.

It is an amenable number.

190729169 is a deficient number, since it is larger than the sum of its proper divisors (1).

190729169 is an equidigital number, since it uses as much as digits as its factorization.

190729169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 44.

The square root of 190729169 is about 13810.4731635089. The cubic root of 190729169 is about 575.6241932372.

The spelling of 190729169 in words is "one hundred ninety million, seven hundred twenty-nine thousand, one hundred sixty-nine".