108078581 has 4 divisors (see below), whose sum is σ = 116392332. Its totient is φ = 99764832.

The previous prime is 108078569. The next prime is 108078601. The reversal of 108078581 is 185870801.

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 44222500 + 63856081 = 6650^2 + 7991^2 .

It is a cyclic number.

It is not a de Polignac number, because 108078581 - 2¹⁴ = 108062197 is a prime.

It is a super-2 number, since 2×108078581² = 23361959341947122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108078781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4156856 + ... + 4156881.

It is an arithmetic number, because the mean of its divisors is an integer number (29098083).

Almost surely, 2^108078581 is an apocalyptic number.

It is an amenable number.

108078581 is a deficient number, since it is larger than the sum of its proper divisors (8313751).

108078581 is an equidigital number, since it uses as much as digits as its factorization.

108078581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8313750.

The product of its (nonzero) digits is 17920, while the sum is 38.

The square root of 108078581 is about 10396.0848880720. The cubic root of 108078581 is about 476.3357871837.

The spelling of 108078581 in words is "one hundred eight million, seventy-eight thousand, five hundred eighty-one".