199648453 has 2 divisors, whose sum is σ = 199648454. Its totient is φ = 199648452.

The previous prime is 199648429. The next prime is 199648457. The reversal of 199648453 is 354846991.

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., 137522529 + 62125924 = 11727^2 + 7882^2 .

It is an emirp because it is prime and its reverse (354846991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199648453 - 2⁹ = 199647941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 199648397 and 199648406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199648457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99824226 + 99824227.

It is an arithmetic number, because the mean of its divisors is an integer number (99824227).

Almost surely, 2^199648453 is an apocalyptic number.

It is an amenable number.

199648453 is a deficient number, since it is larger than the sum of its proper divisors (1).

199648453 is an equidigital number, since it uses as much as digits as its factorization.

199648453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 49.

The square root of 199648453 is about 14129.7010937953. The cubic root of 199648453 is about 584.4607034664.

The spelling of 199648453 in words is "one hundred ninety-nine million, six hundred forty-eight thousand, four hundred fifty-three".