110721872 has 20 divisors (see below), whose sum is σ = 215218740. Its totient is φ = 55181568.

The previous prime is 110721857. The next prime is 110721881. The reversal of 110721872 is 278127011.

It can be written as a sum of positive squares in 2 ways, for example, as 5125696 + 105596176 = 2264^2 + 10276^2 .

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6047 + ... + 16062.

It is an arithmetic number, because the mean of its divisors is an integer number (10760937).

Almost surely, 2^110721872 is an apocalyptic number.

It is an amenable number.

110721872 is a deficient number, since it is larger than the sum of its proper divisors (104496868).

110721872 is a wasteful number, since it uses less digits than its factorization.

110721872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22430 (or 22424 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 110721872 is about 10522.4461034495. The cubic root of 110721872 is about 480.1878200165.

Adding to 110721872 its reverse (278127011), we get a palindrome (388848883).

The spelling of 110721872 in words is "one hundred ten million, seven hundred twenty-one thousand, eight hundred seventy-two".