108172943 has 4 divisors (see below), whose sum is σ = 108193920. Its totient is φ = 108151968.

The previous prime is 108172931. The next prime is 108172951. The reversal of 108172943 is 349271801.

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 108172943 - 2⁶ = 108172879 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 (108172903) 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, 3218 + ... + 15056.

It is an arithmetic number, because the mean of its divisors is an integer number (27048480).

Almost surely, 2^108172943 is an apocalyptic number.

108172943 is a deficient number, since it is larger than the sum of its proper divisors (20977).

108172943 is an equidigital number, since it uses as much as digits as its factorization.

108172943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20976.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 108172943 is about 10400.6222410008. The cubic root of 108172943 is about 476.4743743805.

The spelling of 108172943 in words is "one hundred eight million, one hundred seventy-two thousand, nine hundred forty-three".