190019069 has 2 divisors, whose sum is σ = 190019070. Its totient is φ = 190019068.

The previous prime is 190019033. The next prime is 190019083. The reversal of 190019069 is 960910091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108784900 + 81234169 = 10430^2 + 9013^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190019069 is a prime.

It is a super-2 number, since 2×190019069² = 72214493167253522, which contains 22 as substring.

It is a Chen prime.

It is equal to p_10556477 and since 190019069 and 10556477 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190019009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95009534 + 95009535.

It is an arithmetic number, because the mean of its divisors is an integer number (95009535).

Almost surely, 2^190019069 is an apocalyptic number.

It is an amenable number.

190019069 is a deficient number, since it is larger than the sum of its proper divisors (1).

190019069 is an equidigital number, since it uses as much as digits as its factorization.

190019069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 190019069 is about 13784.7404400663. The cubic root of 190019069 is about 574.9089398333.

The spelling of 190019069 in words is "one hundred ninety million, nineteen thousand, sixty-nine".