199321349 has 2 divisors, whose sum is σ = 199321350. Its totient is φ = 199321348.

The previous prime is 199321337. The next prime is 199321357. The reversal of 199321349 is 943123991.

199321349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158130625 + 41190724 = 12575^2 + 6418^2 .

It is an emirp because it is prime and its reverse (943123991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199321349 - 2⁸ = 199321093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199321319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99660674 + 99660675.

It is an arithmetic number, because the mean of its divisors is an integer number (99660675).

Almost surely, 2^199321349 is an apocalyptic number.

It is an amenable number.

199321349 is a deficient number, since it is larger than the sum of its proper divisors (1).

199321349 is an equidigital number, since it uses as much as digits as its factorization.

199321349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 41.

The square root of 199321349 is about 14118.1212985298. The cubic root of 199321349 is about 584.1413355379.

The spelling of 199321349 in words is "one hundred ninety-nine million, three hundred twenty-one thousand, three hundred forty-nine".