108019871 has 4 divisors (see below), whose sum is σ = 110654544. Its totient is φ = 105385200.

The previous prime is 108019861. The next prime is 108019889. The reversal of 108019871 is 178910801.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108019871 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 (108019831) 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, 1317275 + ... + 1317356.

It is an arithmetic number, because the mean of its divisors is an integer number (27663636).

Almost surely, 2^108019871 is an apocalyptic number.

108019871 is a deficient number, since it is larger than the sum of its proper divisors (2634673).

108019871 is an equidigital number, since it uses as much as digits as its factorization.

108019871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634672.

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 108019871 is about 10393.2608453748. The cubic root of 108019871 is about 476.2495205089.

The spelling of 108019871 in words is "one hundred eight million, nineteen thousand, eight hundred seventy-one".