109115724 has 48 divisors (see below), whose sum is σ = 270781056. Its totient is φ = 34080000.

The previous prime is 109115693. The next prime is 109115729. The reversal of 109115724 is 427511901.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 109115691 and 109115700.

It is not an unprimeable number, because it can be changed into a prime (109115729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50139 + ... + 52269.

It is an arithmetic number, because the mean of its divisors is an integer number (5641272).

Almost surely, 2^109115724 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 109115724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135390528).

109115724 is an abundant number, since it is smaller than the sum of its proper divisors (161665332).

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

109115724 is a wasteful number, since it uses less digits than its factorization.

109115724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406 (or 2404 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 109115724 is about 10445.8472131273. The cubic root of 109115724 is about 477.8546093535.

The spelling of 109115724 in words is "one hundred nine million, one hundred fifteen thousand, seven hundred twenty-four".