108105870 has 64 divisors (see below), whose sum is σ = 267531264. Its totient is φ = 27941760.

The previous prime is 108105863. The next prime is 108105931. The reversal of 108105870 is 78501801.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233259 + ... + 233721.

It is an arithmetic number, because the mean of its divisors is an integer number (4180176).

Almost surely, 2^108105870 is an apocalyptic number.

108105870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 108105870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133765632).

108105870 is an abundant number, since it is smaller than the sum of its proper divisors (159425394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108105870 is a wasteful number, since it uses less digits than its factorization.

108105870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697.

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 108105870 is about 10397.3972704711. The cubic root of 108105870 is about 476.3758741689.

The spelling of 108105870 in words is "one hundred eight million, one hundred five thousand, eight hundred seventy".