108908641 has 4 divisors (see below), whose sum is σ = 108980500. Its totient is φ = 108836784.

The previous prime is 108908621. The next prime is 108908671. The reversal of 108908641 is 146809801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146809801 = 347 ⋅423083.

It can be written as a sum of positive squares in 2 ways, for example, as 26625600 + 82283041 = 5160^2 + 9071^2 .

It is a cyclic number.

It is not a de Polignac number, because 108908641 - 2¹¹ = 108906593 is a prime.

It is a super-2 number, since 2×108908641² = 23722184168933762, 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 108908641.

It is not an unprimeable number, because it can be changed into a prime (108908621) 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, 33606 + ... + 36703.

It is an arithmetic number, because the mean of its divisors is an integer number (27245125).

Almost surely, 2^108908641 is an apocalyptic number.

It is an amenable number.

108908641 is a deficient number, since it is larger than the sum of its proper divisors (71859).

108908641 is an equidigital number, since it uses as much as digits as its factorization.

108908641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71858.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 108908641 is about 10435.9302891501. The cubic root of 108908641 is about 477.5521224500.

The spelling of 108908641 in words is "one hundred eight million, nine hundred eight thousand, six hundred forty-one".