109223136 has 144 divisors (see below), whose sum is σ = 353808000. Its totient is φ = 31637760.

The previous prime is 109223131. The next prime is 109223141. The reversal of 109223136 is 631322901.

It is an interprime number because it is at equal distance from previous prime (109223131) and next prime (109223141).

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109223131) 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 23 ways as a sum of consecutive naturals, for example, 72115 + ... + 73613.

It is an arithmetic number, because the mean of its divisors is an integer number (2457000).

Almost surely, 2^109223136 is an apocalyptic number.

109223136 is a gapful number since it is divisible by the number (16) 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 109223136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176904000).

109223136 is an abundant number, since it is smaller than the sum of its proper divisors (244584864).

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

109223136 is a wasteful number, since it uses less digits than its factorization.

109223136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 109223136 is about 10450.9873217797. The cubic root of 109223136 is about 478.0113557406.

The spelling of 109223136 in words is "one hundred nine million, two hundred twenty-three thousand, one hundred thirty-six".