199148533 has 2 divisors, whose sum is σ = 199148534. Its totient is φ = 199148532.

The previous prime is 199148503. The next prime is 199148549. The reversal of 199148533 is 335841991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128890609 + 70257924 = 11353^2 + 8382^2 .

It is a cyclic number.

It is not a de Polignac number, because 199148533 - 2¹⁷ = 199017461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199148533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199148503) 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, 99574266 + 99574267.

It is an arithmetic number, because the mean of its divisors is an integer number (99574267).

Almost surely, 2^199148533 is an apocalyptic number.

It is an amenable number.

199148533 is a deficient number, since it is larger than the sum of its proper divisors (1).

199148533 is an equidigital number, since it uses as much as digits as its factorization.

199148533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 43.

The square root of 199148533 is about 14111.9996102608. Note that the first 3 decimals coincide. The cubic root of 199148533 is about 583.9724655890.

The spelling of 199148533 in words is "one hundred ninety-nine million, one hundred forty-eight thousand, five hundred thirty-three".