112757281 has 12 divisors (see below), whose sum is σ = 141257172. Its totient is φ = 89214048.

The previous prime is 112757279. The next prime is 112757317. The reversal of 112757281 is 182757211.

It can be written as a sum of positive squares in 2 ways, for example, as 4410000 + 108347281 = 2100^2 + 10409^2 .

It is not a de Polignac number, because 112757281 - 2¹ = 112757279 is a prime.

It is a super-2 number, since 2×112757281² = 25428408837025922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (112757221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87870 + ... + 89143.

It is an arithmetic number, because the mean of its divisors is an integer number (11771431).

Almost surely, 2^112757281 is an apocalyptic number.

It is an amenable number.

112757281 is a deficient number, since it is larger than the sum of its proper divisors (28499891).

112757281 is a wasteful number, since it uses less digits than its factorization.

112757281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177040 (or 177033 counting only the distinct ones).

The product of its digits is 7840, while the sum is 34.

The square root of 112757281 is about 10618.7231341626. The cubic root of 112757281 is about 483.1124151979.

The spelling of 112757281 in words is "one hundred twelve million, seven hundred fifty-seven thousand, two hundred eighty-one".