109144 has 16 divisors (see below), whose sum is σ = 234000. Its totient is φ = 46752.

The previous prime is 109141. The next prime is 109147. The reversal of 109144 is 441901.

109144 = T₄₂ + T₄₃ + ... + T₈₉.

It is an interprime number because it is at equal distance from previous prime (109141) and next prime (109147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919 + ... + 1030.

It is an arithmetic number, because the mean of its divisors is an integer number (14625).

2¹⁰⁹¹⁴⁴ is an apocalyptic number.

109144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

109144 is an abundant number, since it is smaller than the sum of its proper divisors (124856).

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

109144 is a wasteful number, since it uses less digits than its factorization.

109144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 109144 is about 330.3694901167. The cubic root of 109144 is about 47.7895882507.

It can be divided in two parts, 109 and 144, that added together give a triangular number (253 = T₂₂).

The spelling of 109144 in words is "one hundred nine thousand, one hundred forty-four".