109213860 has 96 divisors (see below), whose sum is σ = 350864640. Its totient is φ = 24864768.

The previous prime is 109213847. The next prime is 109213861. The reversal of 109213860 is 68312901.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (109213861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191656 + ... + 192224.

It is an arithmetic number, because the mean of its divisors is an integer number (3654840).

Almost surely, 2^109213860 is an apocalyptic number.

109213860 is a gapful number since it is divisible by the number (10) 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 109213860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175432320).

109213860 is an abundant number, since it is smaller than the sum of its proper divisors (241650780).

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

109213860 is a wasteful number, since it uses less digits than its factorization.

109213860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 109213860 is about 10450.5435265349. The cubic root of 109213860 is about 477.9978233242.

The spelling of 109213860 in words is "one hundred nine million, two hundred thirteen thousand, eight hundred sixty".