109108287 has 12 divisors (see below), whose sum is σ = 160272840. Its totient is φ = 71505648.

The previous prime is 109108271. The next prime is 109108303. The reversal of 109108287 is 782801901.

It is an interprime number because it is at equal distance from previous prime (109108271) and next prime (109108303).

It is not a de Polignac number, because 109108287 - 2⁴ = 109108271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109108267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102208 + ... + 103269.

It is an arithmetic number, because the mean of its divisors is an integer number (13356070).

Almost surely, 2^109108287 is an apocalyptic number.

109108287 is a deficient number, since it is larger than the sum of its proper divisors (51164553).

109108287 is a wasteful number, since it uses less digits than its factorization.

109108287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205542 (or 205539 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 109108287 is about 10445.4912282764. The cubic root of 109108287 is about 477.8437527285.

The spelling of 109108287 in words is "one hundred nine million, one hundred eight thousand, two hundred eighty-seven".