1120281256 has 8 divisors (see below), whose sum is σ = 2100527370. Its totient is φ = 560140624.

The previous prime is 1120281241. The next prime is 1120281259. The reversal of 1120281256 is 6521820211.

It can be written as a sum of positive squares in only one way, i.e., 1086757156 + 33524100 = 32966^2 + 5790^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1120281259) 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 as a sum of consecutive naturals, namely, 70017571 + ... + 70017586.

Almost surely, 2^1120281256 is an apocalyptic number.

It is an amenable number.

1120281256 is a deficient number, since it is larger than the sum of its proper divisors (980246114).

1120281256 is a wasteful number, since it uses less digits than its factorization.

1120281256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140035163 (or 140035159 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1120281256 is about 33470.6028628108. The cubic root of 1120281256 is about 1038.5857428637.

It can be divided in two parts, 1120 and 281256, that added together give a triangular number (282376 = T₇₅₁).

The spelling of 1120281256 in words is "one billion, one hundred twenty million, two hundred eighty-one thousand, two hundred fifty-six".