108665144 has 48 divisors (see below), whose sum is σ = 238806000. Its totient is φ = 46336752.

The previous prime is 108665131. The next prime is 108665153. The reversal of 108665144 is 441566801.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a super-2 number, since 2×108665144² = 23616227041081472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545957 + ... + 546155.

It is an arithmetic number, because the mean of its divisors is an integer number (4975125).

Almost surely, 2^108665144 is an apocalyptic number.

108665144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108665144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119403000).

108665144 is an abundant number, since it is smaller than the sum of its proper divisors (130140856).

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

108665144 is an frugal number, since it uses more digits than its factorization.

108665144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 108665144 is about 10424.2574795522. The cubic root of 108665144 is about 477.1959545738.

The spelling of 108665144 in words is "one hundred eight million, six hundred sixty-five thousand, one hundred forty-four".