109208 has 32 divisors (see below), whose sum is σ = 239760. Its totient is φ = 46080.

The previous prime is 109201. The next prime is 109211. The reversal of 109208 is 802901.

109208 = 72² + 73² + ... + 88².

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 109208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109201) by changing a digit.

109208 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460 + ... + 1532.

2¹⁰⁹²⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119880).

109208 is an abundant number, since it is smaller than the sum of its proper divisors (130552).

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

109208 is a wasteful number, since it uses less digits than its factorization.

109208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 109208 is about 330.4663371661. The cubic root of 109208 is about 47.7989273990.

The spelling of 109208 in words is "one hundred nine thousand, two hundred eight".