199226453 has 2 divisors, whose sum is σ = 199226454. Its totient is φ = 199226452.

The previous prime is 199226449. The next prime is 199226459. The reversal of 199226453 is 354622991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193571569 + 5654884 = 13913^2 + 2378^2 .

It is a cyclic number.

It is not a de Polignac number, because 199226453 - 2² = 199226449 is a prime.

It is a super-2 number, since 2×199226453² = 79382359149922418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 199226453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199226459) 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, 99613226 + 99613227.

It is an arithmetic number, because the mean of its divisors is an integer number (99613227).

Almost surely, 2^199226453 is an apocalyptic number.

It is an amenable number.

199226453 is a deficient number, since it is larger than the sum of its proper divisors (1).

199226453 is an equidigital number, since it uses as much as digits as its factorization.

199226453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 41.

The square root of 199226453 is about 14114.7601113161. The cubic root of 199226453 is about 584.0486184660.

The spelling of 199226453 in words is "one hundred ninety-nine million, two hundred twenty-six thousand, four hundred fifty-three".