109011630 has 128 divisors (see below), whose sum is σ = 327011328. Its totient is φ = 22643712.

The previous prime is 109011587. The next prime is 109011631. The reversal of 109011630 is 36110901.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 109011597 and 109011606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109011631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 199017 + ... + 199563.

It is an arithmetic number, because the mean of its divisors is an integer number (2554776).

Almost surely, 2^109011630 is an apocalyptic number.

109011630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109011630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163505664).

109011630 is an abundant number, since it is smaller than the sum of its proper divisors (217999698).

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

109011630 is a wasteful number, since it uses less digits than its factorization.

109011630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 109011630 is about 10440.8634700392. The cubic root of 109011630 is about 477.7026067462.

It can be divided in two parts, 1090 and 11630, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 109011630 in words is "one hundred nine million, eleven thousand, six hundred thirty".