1108172171 has 4 divisors (see below), whose sum is σ = 1108239000. Its totient is φ = 1108105344.

The previous prime is 1108172167. The next prime is 1108172173. The reversal of 1108172171 is 1712718011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1108172171 - 2² = 1108172167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1108172173) 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, 12380 + ... + 48678.

It is an arithmetic number, because the mean of its divisors is an integer number (277059750).

Almost surely, 2^1108172171 is an apocalyptic number.

1108172171 is a deficient number, since it is larger than the sum of its proper divisors (66829).

1108172171 is an equidigital number, since it uses as much as digits as its factorization.

1108172171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66828.

The product of its (nonzero) digits is 784, while the sum is 29.

The square root of 1108172171 is about 33289.2200419295. The cubic root of 1108172171 is about 1034.8301652920.

The spelling of 1108172171 in words is "one billion, one hundred eight million, one hundred seventy-two thousand, one hundred seventy-one".