108608581 has 4 divisors (see below), whose sum is σ = 109605100. Its totient is φ = 107612064.

The previous prime is 108608573. The next prime is 108608639. The reversal of 108608581 is 185806801.

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 38551681 + 70056900 = 6209^2 + 8370^2 .

It is a cyclic number.

It is not a de Polignac number, because 108608581 - 2³ = 108608573 is a prime.

It is a super-2 number, since 2×108608581² = 23591647733667122, which contains 22 as substring.

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 108608581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108608551) 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, 498096 + ... + 498313.

It is an arithmetic number, because the mean of its divisors is an integer number (27401275).

Almost surely, 2^108608581 is an apocalyptic number.

It is an amenable number.

108608581 is a deficient number, since it is larger than the sum of its proper divisors (996519).

108608581 is an equidigital number, since it uses as much as digits as its factorization.

108608581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996518.

The product of its (nonzero) digits is 15360, while the sum is 37.

The square root of 108608581 is about 10421.5440794539. The cubic root of 108608581 is about 477.1131426177.

The spelling of 108608581 in words is "one hundred eight million, six hundred eight thousand, five hundred eighty-one".