108643001 has 4 divisors (see below), whose sum is σ = 109035492. Its totient is φ = 108250512.

The previous prime is 108642977. The next prime is 108643009. The reversal of 108643001 is 100346801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100346801 = 17 ⋅5902753.

It can be written as a sum of positive squares in 2 ways, for example, as 64818601 + 43824400 = 8051^2 + 6620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108643001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108643009) 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, 195830 + ... + 196383.

It is an arithmetic number, because the mean of its divisors is an integer number (27258873).

Almost surely, 2^108643001 is an apocalyptic number.

It is an amenable number.

108643001 is a deficient number, since it is larger than the sum of its proper divisors (392491).

108643001 is an equidigital number, since it uses as much as digits as its factorization.

108643001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392490.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 108643001 is about 10423.1953354046. The cubic root of 108643001 is about 477.1635391876.

Adding to 108643001 its reverse (100346801), we get a palindrome (208989802).

The spelling of 108643001 in words is "one hundred eight million, six hundred forty-three thousand, one".