108860091 has 4 divisors (see below), whose sum is σ = 145146792. Its totient is φ = 72573392.

The previous prime is 108860071. The next prime is 108860107. The reversal of 108860091 is 190068801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 108860091 - 2¹⁰ = 108859067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108860021) 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, 18143346 + ... + 18143351.

It is an arithmetic number, because the mean of its divisors is an integer number (36286698).

Almost surely, 2^108860091 is an apocalyptic number.

108860091 is a deficient number, since it is larger than the sum of its proper divisors (36286701).

108860091 is an equidigital number, since it uses as much as digits as its factorization.

108860091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36286700.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 108860091 is about 10433.6039315282. The cubic root of 108860091 is about 477.4811498091.

The spelling of 108860091 in words is "one hundred eight million, eight hundred sixty thousand, ninety-one".