108235287 has 12 divisors (see below), whose sum is σ = 156653640. Its totient is φ = 72012048.

The previous prime is 108235271. The next prime is 108235297. The reversal of 108235287 is 782532801.

108235287 is a `hidden beast` number, since 108 + 23 + 528 + 7 = 666.

It is not a de Polignac number, because 108235287 - 2⁴ = 108235271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108235207) 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, 7233 + ... + 16394.

It is an arithmetic number, because the mean of its divisors is an integer number (13054470).

Almost surely, 2^108235287 is an apocalyptic number.

108235287 is a deficient number, since it is larger than the sum of its proper divisors (48418353).

108235287 is a wasteful number, since it uses less digits than its factorization.

108235287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24142 (or 24139 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 108235287 is about 10403.6189376582. The cubic root of 108235287 is about 476.5658933027.

It can be divided in two parts, 10823 and 5287, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 108235287 in words is "one hundred eight million, two hundred thirty-five thousand, two hundred eighty-seven".