109004 has 24 divisors (see below), whose sum is σ = 231840. Its totient is φ = 43776.

The previous prime is 109001. The next prime is 109013. The reversal of 109004 is 400901.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 109004.

It is not an unprimeable number, because it can be changed into a prime (109001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362 + ... + 590.

It is an arithmetic number, because the mean of its divisors is an integer number (9660).

2¹⁰⁹⁰⁰⁴ is an apocalyptic number.

109004 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 109004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115920).

109004 is an abundant number, since it is smaller than the sum of its proper divisors (122836).

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

109004 is a wasteful number, since it uses less digits than its factorization.

109004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 109004 is about 330.1575381541. The cubic root of 109004 is about 47.7691461281.

Adding to 109004 its reverse (400901), we get a palindrome (509905).

The spelling of 109004 in words is "one hundred nine thousand, four".