111949443 has 6 divisors (see below), whose sum is σ = 161704764. Its totient is φ = 74632956.

The previous prime is 111949427. The next prime is 111949447. The reversal of 111949443 is 344949111.

It is not a de Polignac number, because 111949443 - 2⁴ = 111949427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111949398 and 111949407.

It is not an unprimeable number, because it can be changed into a prime (111949447) 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 5 ways as a sum of consecutive naturals, for example, 6219405 + ... + 6219422.

It is an arithmetic number, because the mean of its divisors is an integer number (26950794).

Almost surely, 2^111949443 is an apocalyptic number.

111949443 is a deficient number, since it is larger than the sum of its proper divisors (49755321).

111949443 is a wasteful number, since it uses less digits than its factorization.

111949443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12438833 (or 12438830 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 111949443 is about 10580.6163809109. The cubic root of 111949443 is about 481.9559124175.

The spelling of 111949443 in words is "one hundred eleven million, nine hundred forty-nine thousand, four hundred forty-three".