109319805 has 96 divisors (see below), whose sum is σ = 230031360. Its totient is φ = 46949760.

The previous prime is 109319801. The next prime is 109319827. The reversal of 109319805 is 508913901.

It is a happy number.

It is not a de Polignac number, because 109319805 - 2² = 109319801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109319805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109319801) 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 95 ways as a sum of consecutive naturals, for example, 572260 + ... + 572450.

It is an arithmetic number, because the mean of its divisors is an integer number (2396160).

Almost surely, 2^109319805 is an apocalyptic number.

109319805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109319805 is an abundant number, since it is smaller than the sum of its proper divisors (120711555).

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

109319805 is a wasteful number, since it uses less digits than its factorization.

109319805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 109319805 is about 10455.6111729540. The cubic root of 109319805 is about 478.1523370247.

It can be divided in two parts, 10931 and 9805, that added together give a 4-th power (20736 = 12⁴).

The spelling of 109319805 in words is "one hundred nine million, three hundred nineteen thousand, eight hundred five".