109287 has 6 divisors (see below), whose sum is σ = 157872. Its totient is φ = 72852.

The previous prime is 109279. The next prime is 109297. The reversal of 109287 is 782901.

It is not a de Polignac number, because 109287 - 2³ = 109279 is a prime.

109287 is a lucky number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 109287.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 109287.

It is not an unprimeable number, because it can be changed into a prime (109267) 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 5 ways as a sum of consecutive naturals, for example, 6063 + ... + 6080.

It is an arithmetic number, because the mean of its divisors is an integer number (26312).

2¹⁰⁹²⁸⁷ is an apocalyptic number.

109287 is a deficient number, since it is larger than the sum of its proper divisors (48585).

109287 is a wasteful number, since it uses less digits than its factorization.

109287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12149 (or 12146 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 109287 is about 330.5858436171. The cubic root of 109287 is about 47.8104503799.

The spelling of 109287 in words is "one hundred nine thousand, two hundred eighty-seven".