108145172 has 24 divisors (see below), whose sum is σ = 202082496. Its totient is φ = 50516928.

The previous prime is 108145153. The next prime is 108145183. The reversal of 108145172 is 271541801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9713 + ... + 17624.

It is an arithmetic number, because the mean of its divisors is an integer number (8420104).

Almost surely, 2^108145172 is an apocalyptic number.

It is an amenable number.

108145172 is a deficient number, since it is larger than the sum of its proper divisors (93937324).

108145172 is a wasteful number, since it uses less digits than its factorization.

108145172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27407 (or 27405 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 108145172 is about 10399.2870909500. The cubic root of 108145172 is about 476.4335961538.

Adding to 108145172 its reverse (271541801), we get a palindrome (379686973).

The spelling of 108145172 in words is "one hundred eight million, one hundred forty-five thousand, one hundred seventy-two".