1109199198 has 16 divisors (see below), whose sum is σ = 2219248656. Its totient is φ = 369591360.

The previous prime is 1109199197. The next prime is 1109199269. The reversal of 1109199198 is 8919919011.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109199197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17793 + ... + 50348.

It is an arithmetic number, because the mean of its divisors is an integer number (138703041).

Almost surely, 2^1109199198 is an apocalyptic number.

1109199198 is an abundant number, since it is smaller than the sum of its proper divisors (1110049458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1109199198 is a wasteful number, since it uses less digits than its factorization.

1109199198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70859.

The product of its (nonzero) digits is 52488, while the sum is 48.

The square root of 1109199198 is about 33304.6422890263. The cubic root of 1109199198 is about 1035.1497517220.

The spelling of 1109199198 in words is "one billion, one hundred nine million, one hundred ninety-nine thousand, one hundred ninety-eight".