111249798 has 32 divisors (see below), whose sum is σ = 243292032. Its totient is φ = 33633600.

The previous prime is 111249791. The next prime is 111249823. The reversal of 111249798 is 897942111.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111249791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30690 + ... + 34122.

It is an arithmetic number, because the mean of its divisors is an integer number (7602876).

Almost surely, 2^111249798 is an apocalyptic number.

111249798 is an abundant number, since it is smaller than the sum of its proper divisors (132042234).

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

111249798 is a wasteful number, since it uses less digits than its factorization.

111249798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940.

The product of its digits is 36288, while the sum is 42.

The square root of 111249798 is about 10547.5019791418. The cubic root of 111249798 is about 480.9497947118.

The spelling of 111249798 in words is "one hundred eleven million, two hundred forty-nine thousand, seven hundred ninety-eight".