108280285 has 4 divisors (see below), whose sum is σ = 129936348. Its totient is φ = 86624224.

The previous prime is 108280217. The next prime is 108280331. The reversal of 108280285 is 582082801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19882681 + 88397604 = 4459^2 + 9402^2 .

It is a cyclic number.

It is not a de Polignac number, because 108280285 - 2¹⁷ = 108149213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108280285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10828024 + ... + 10828033.

It is an arithmetic number, because the mean of its divisors is an integer number (32484087).

Almost surely, 2^108280285 is an apocalyptic number.

It is an amenable number.

108280285 is a deficient number, since it is larger than the sum of its proper divisors (21656063).

108280285 is an equidigital number, since it uses as much as digits as its factorization.

108280285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21656062.

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 108280285 is about 10405.7813257823. The cubic root of 108280285 is about 476.6319270383.

The spelling of 108280285 in words is "one hundred eight million, two hundred eighty thousand, two hundred eighty-five".