111387 has 8 divisors (see below), whose sum is σ = 150336. Its totient is φ = 73352.

The previous prime is 111373. The next prime is 111409. The reversal of 111387 is 783111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111387 - 2⁶ = 111323 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 148 + ... + 494.

It is an arithmetic number, because the mean of its divisors is an integer number (18792).

2¹¹¹³⁸⁷ is an apocalyptic number.

111387 is a deficient number, since it is larger than the sum of its proper divisors (38949).

111387 is a wasteful number, since it uses less digits than its factorization.

111387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457.

The product of its digits is 168, while the sum is 21.

The square root of 111387 is about 333.7469100981. The cubic root of 111387 is about 48.1147428525.

Adding to 111387 its reverse (783111), we get a palindrome (894498).

The spelling of 111387 in words is "one hundred eleven thousand, three hundred eighty-seven".