109854 has 24 divisors (see below), whose sum is σ = 252720. Its totient is φ = 34368.

The previous prime is 109849. The next prime is 109859. The reversal of 109854 is 458901.

It is an interprime number because it is at equal distance from previous prime (109849) and next prime (109859).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127 + ... + 485.

It is an arithmetic number, because the mean of its divisors is an integer number (10530).

2¹⁰⁹⁸⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126360).

109854 is an abundant number, since it is smaller than the sum of its proper divisors (142866).

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

109854 is a wasteful number, since it uses less digits than its factorization.

109854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 109854 is about 331.4423026712. The cubic root of 109854 is about 47.8929907820.

The spelling of 109854 in words is "one hundred nine thousand, eight hundred fifty-four".