109612140 has 96 divisors (see below), whose sum is σ = 352477440. Its totient is φ = 25171200.

The previous prime is 109612127. The next prime is 109612163. The reversal of 109612140 is 41216901.

It is a self number, because there is not a number n which added to its sum of digits gives 109612140.

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 31 ways as a sum of consecutive naturals, for example, 8170 + ... + 16910.

It is an arithmetic number, because the mean of its divisors is an integer number (3671640).

Almost surely, 2^109612140 is an apocalyptic number.

109612140 is a gapful number since it is divisible by the number (10) 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 109612140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176238720).

109612140 is an abundant number, since it is smaller than the sum of its proper divisors (242865300).

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

109612140 is a wasteful number, since it uses less digits than its factorization.

109612140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8783 (or 8781 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 109612140 is about 10469.5816535332. The cubic root of 109612140 is about 478.5781709687.

The spelling of 109612140 in words is "one hundred nine million, six hundred twelve thousand, one hundred forty".