199441553 has 2 divisors, whose sum is σ = 199441554. Its totient is φ = 199441552.

The previous prime is 199441511. The next prime is 199441559. The reversal of 199441553 is 355144991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144192064 + 55249489 = 12008^2 + 7433^2 .

It is a cyclic number.

It is not a de Polignac number, because 199441553 - 2¹⁴ = 199425169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199441553.

It is not a weakly prime, because it can be changed into another prime (199441559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99720776 + 99720777.

It is an arithmetic number, because the mean of its divisors is an integer number (99720777).

Almost surely, 2^199441553 is an apocalyptic number.

It is an amenable number.

199441553 is a deficient number, since it is larger than the sum of its proper divisors (1).

199441553 is an equidigital number, since it uses as much as digits as its factorization.

199441553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 41.

The square root of 199441553 is about 14122.3777388937. The cubic root of 199441553 is about 584.2587372700.

The spelling of 199441553 in words is "one hundred ninety-nine million, four hundred forty-one thousand, five hundred fifty-three".