111398 has 16 divisors (see below), whose sum is σ = 195360. Its totient is φ = 46656.

The previous prime is 111373. The next prime is 111409. The reversal of 111398 is 893111.

It is a congruent number.

It is an unprimeable number.

111398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 968 + ... + 1076.

It is an arithmetic number, because the mean of its divisors is an integer number (12210).

2¹¹¹³⁹⁸ is an apocalyptic number.

111398 is a deficient number, since it is larger than the sum of its proper divisors (83962).

111398 is a wasteful number, since it uses less digits than its factorization.

111398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191.

The product of its digits is 216, while the sum is 23.

The square root of 111398 is about 333.7633892445. The cubic root of 111398 is about 48.1163266542.

The spelling of 111398 in words is "one hundred eleven thousand, three hundred ninety-eight".