112251281 has 2 divisors, whose sum is σ = 112251282. Its totient is φ = 112251280.

The previous prime is 112251253. The next prime is 112251283. The reversal of 112251281 is 182152211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94400656 + 17850625 = 9716^2 + 4225^2 .

It is an emirp because it is prime and its reverse (182152211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112251281 - 2¹⁴ = 112234897 is a prime.

It is a super-2 number, since 2×112251281² = 25200700172281922, which contains 22 as substring.

Together with 112251283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112251283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56125640 + 56125641.

It is an arithmetic number, because the mean of its divisors is an integer number (56125641).

Almost surely, 2^112251281 is an apocalyptic number.

It is an amenable number.

112251281 is a deficient number, since it is larger than the sum of its proper divisors (1).

112251281 is an equidigital number, since it uses as much as digits as its factorization.

112251281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 320, while the sum is 23.

The square root of 112251281 is about 10594.8705041638. The cubic root of 112251281 is about 482.3886734307.

The spelling of 112251281 in words is "one hundred twelve million, two hundred fifty-one thousand, two hundred eighty-one".