108399144 has 32 divisors (see below), whose sum is σ = 309712320. Its totient is φ = 30971136.

The previous prime is 108399143. The next prime is 108399163. The reversal of 108399144 is 441993801.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (108399143) by changing a digit.

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, 322449 + ... + 322784.

It is an arithmetic number, because the mean of its divisors is an integer number (9678510).

Almost surely, 2^108399144 is an apocalyptic number.

108399144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

108399144 is an abundant number, since it is smaller than the sum of its proper divisors (201313176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108399144 is a wasteful number, since it uses less digits than its factorization.

108399144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645249 (or 645245 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 108399144 is about 10411.4909595120. The cubic root of 108399144 is about 476.8062624923.

The spelling of 108399144 in words is "one hundred eight million, three hundred ninety-nine thousand, one hundred forty-four".