112841721 has 16 divisors (see below), whose sum is σ = 169465920. Its totient is φ = 74196000.

The previous prime is 112841713. The next prime is 112841777. The reversal of 112841721 is 127148211.

It is not a de Polignac number, because 112841721 - 2³ = 112841713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (112841321) 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, 26655 + ... + 30596.

It is an arithmetic number, because the mean of its divisors is an integer number (10591620).

Almost surely, 2^112841721 is an apocalyptic number.

It is an amenable number.

112841721 is a deficient number, since it is larger than the sum of its proper divisors (56624199).

112841721 is an equidigital number, since it uses as much as digits as its factorization.

112841721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57333 (or 57327 counting only the distinct ones).

The product of its digits is 896, while the sum is 27.

The square root of 112841721 is about 10622.6983860034. The cubic root of 112841721 is about 483.2329804603.

Adding to 112841721 its reverse (127148211), we get a palindrome (239989932).

It can be divided in two parts, 1128 and 41721, that added together give a square (42849 = 207²).

The spelling of 112841721 in words is "one hundred twelve million, eight hundred forty-one thousand, seven hundred twenty-one".