111397 has 16 divisors (see below), whose sum is σ = 141120. Its totient is φ = 86400.
The previous prime is 111373. The next prime is 111409. The reversal of 111397 is 793111.
It is a cyclic number.
It is not a de Polignac number, because 111397 - 27 = 111269 is a prime.
It is a Duffinian number.
111397 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (111317) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2697 + ... + 2737.
It is an arithmetic number, because the mean of its divisors is an integer number (8820).
2111397 is an apocalyptic number.
It is an amenable number.
111397 is a deficient number, since it is larger than the sum of its proper divisors (29723).
111397 is a wasteful number, since it uses less digits than its factorization.
111397 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84.
The product of its digits is 189, while the sum is 22.
The square root of 111397 is about 333.7618911739. The cubic root of 111397 is about 48.1161826765.
The spelling of 111397 in words is "one hundred eleven thousand, three hundred ninety-seven".
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