112271521 has 4 divisors (see below), whose sum is σ = 112295700. Its totient is φ = 112247344.

The previous prime is 112271501. The next prime is 112271531. The reversal of 112271521 is 125172211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125172211 = 733 ⋅170767.

It can be written as a sum of positive squares in 2 ways, for example, as 42315025 + 69956496 = 6505^2 + 8364^2 .

It is a cyclic number.

It is not a de Polignac number, because 112271521 - 2²³ = 103882913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112271492 and 112271501.

It is not an unprimeable number, because it can be changed into a prime (112271501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2686 + ... + 15223.

It is an arithmetic number, because the mean of its divisors is an integer number (28073925).

Almost surely, 2^112271521 is an apocalyptic number.

It is an amenable number.

112271521 is a deficient number, since it is larger than the sum of its proper divisors (24179).

112271521 is an equidigital number, since it uses as much as digits as its factorization.

112271521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24178.

The product of its digits is 280, while the sum is 22.

The square root of 112271521 is about 10595.8256403170. The cubic root of 112271521 is about 482.4176648147.

The spelling of 112271521 in words is "one hundred twelve million, two hundred seventy-one thousand, five hundred twenty-one".