199419133 has 2 divisors, whose sum is σ = 199419134. Its totient is φ = 199419132.

The previous prime is 199419119. The next prime is 199419139. The reversal of 199419133 is 331914991.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194937444 + 4481689 = 13962^2 + 2117^2 .

It is a cyclic number.

It is not a de Polignac number, because 199419133 - 2⁹ = 199418621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199419139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99709566 + 99709567.

It is an arithmetic number, because the mean of its divisors is an integer number (99709567).

Almost surely, 2^199419133 is an apocalyptic number.

It is an amenable number.

199419133 is a deficient number, since it is larger than the sum of its proper divisors (1).

199419133 is an equidigital number, since it uses as much as digits as its factorization.

199419133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244, while the sum is 40.

The square root of 199419133 is about 14121.5839409041. The cubic root of 199419133 is about 584.2368435179.

The spelling of 199419133 in words is "one hundred ninety-nine million, four hundred nineteen thousand, one hundred thirty-three".