111368889 has 6 divisors (see below), whose sum is σ = 160866186. Its totient is φ = 74245920.

The previous prime is 111368879. The next prime is 111368909. The reversal of 111368889 is 988863111.

It can be written as a sum of positive squares in only one way, i.e., 106440489 + 4928400 = 10317^2 + 2220^2 .

It is not a de Polignac number, because 111368889 - 2⁵ = 111368857 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111368809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6187152 + ... + 6187169.

It is an arithmetic number, because the mean of its divisors is an integer number (26811031).

Almost surely, 2^111368889 is an apocalyptic number.

It is an amenable number.

111368889 is a deficient number, since it is larger than the sum of its proper divisors (49497297).

111368889 is a wasteful number, since it uses less digits than its factorization.

111368889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12374327 (or 12374324 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 111368889 is about 10553.1459290583. The cubic root of 111368889 is about 481.1213496786.

It can be divided in two parts, 11 and 1368889, that added together give a square (1368900 = 1170²).

The spelling of 111368889 in words is "one hundred eleven million, three hundred sixty-eight thousand, eight hundred eighty-nine".