108901 has 4 divisors (see below), whose sum is σ = 117292. Its totient is φ = 100512.

The previous prime is 108893. The next prime is 108907. The reversal of 108901 is 109801.

It is a Cunningham number, because it is equal to 330²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 109801 = 19 ⋅5779.

It can be written as a sum of positive squares in 2 ways, for example, as 15876 + 93025 = 126^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 108901 - 2³ = 108893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108907) 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, 4176 + ... + 4201.

It is an arithmetic number, because the mean of its divisors is an integer number (29323).

2¹⁰⁸⁹⁰¹ is an apocalyptic number.

It is an amenable number.

108901 is a deficient number, since it is larger than the sum of its proper divisors (8391).

108901 is an equidigital number, since it uses as much as digits as its factorization.

108901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8390.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 108901 is about 330.0015151480. The cubic root of 108901 is about 47.7540953881.

Subtracting 108901 from its reverse (109801), we obtain a square (900 = 30²).

It can be divided in two parts, 10 and 8901, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 108901 in words is "one hundred eight thousand, nine hundred one".