109144855 has 8 divisors (see below), whose sum is σ = 132768432. Its totient is φ = 86119488.

The previous prime is 109144843. The next prime is 109144859. The reversal of 109144855 is 558441901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109144855 - 2⁵ = 109144823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109144859) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 149149 + ... + 149878.

It is an arithmetic number, because the mean of its divisors is an integer number (16596054).

Almost surely, 2^109144855 is an apocalyptic number.

109144855 is a deficient number, since it is larger than the sum of its proper divisors (23623577).

109144855 is an equidigital number, since it uses as much as digits as its factorization.

109144855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299105.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 109144855 is about 10447.2415019468. The cubic root of 109144855 is about 477.8971303990.

It can be divided in two parts, 1091448 and 55, that added together give a triangular number (1091503 = T₁₄₇₇).

The spelling of 109144855 in words is "one hundred nine million, one hundred forty-four thousand, eight hundred fifty-five".