108431173 has 2 divisors, whose sum is σ = 108431174. Its totient is φ = 108431172.

The previous prime is 108431171. The next prime is 108431231. The reversal of 108431173 is 371134801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107474689 + 956484 = 10367^2 + 978^2 .

It is a cyclic number.

It is not a de Polignac number, because 108431173 - 2¹ = 108431171 is a prime.

Together with 108431171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108431171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54215586 + 54215587.

It is an arithmetic number, because the mean of its divisors is an integer number (54215587).

Almost surely, 2^108431173 is an apocalyptic number.

It is an amenable number.

108431173 is a deficient number, since it is larger than the sum of its proper divisors (1).

108431173 is an equidigital number, since it uses as much as digits as its factorization.

108431173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 108431173 is about 10413.0290021684. The cubic root of 108431173 is about 476.8532189636.

Adding to 108431173 its reverse (371134801), we get a palindrome (479565974).

The spelling of 108431173 in words is "one hundred eight million, four hundred thirty-one thousand, one hundred seventy-three".