199022549 has 12 divisors (see below), whose sum is σ = 229148640. Its totient is φ = 171403560.

The previous prime is 199022531. The next prime is 199022557. The reversal of 199022549 is 945220991.

It is a happy number.

It is not a de Polignac number, because 199022549 - 2⁸ = 199022293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192022549) 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 in 11 ways as a sum of consecutive naturals, for example, 21089 + ... + 29030.

It is an arithmetic number, because the mean of its divisors is an integer number (19095720).

Almost surely, 2^199022549 is an apocalyptic number.

199022549 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

199022549 is a deficient number, since it is larger than the sum of its proper divisors (30126091).

199022549 is a wasteful number, since it uses less digits than its factorization.

199022549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50168 (or 50149 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 199022549 is about 14107.5351851413. The cubic root of 199022549 is about 583.8492967068.

The spelling of 199022549 in words is "one hundred ninety-nine million, twenty-two thousand, five hundred forty-nine".