1112254981 has 2 divisors, whose sum is σ = 1112254982. Its totient is φ = 1112254980.

The previous prime is 1112254939. The next prime is 1112254987. The reversal of 1112254981 is 1894522111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104498756 + 7756225 = 33234^2 + 2785^2 .

It is an emirp because it is prime and its reverse (1894522111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1112254981 - 2¹⁵ = 1112222213 is a prime.

It is a super-2 number, since 2×1112254981² = 2474222285518620722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112254987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556127490 + 556127491.

It is an arithmetic number, because the mean of its divisors is an integer number (556127491).

Almost surely, 2^1112254981 is an apocalyptic number.

It is an amenable number.

1112254981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112254981 is an equidigital number, since it uses as much as digits as its factorization.

1112254981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 34.

The square root of 1112254981 is about 33350.4869679590. The cubic root of 1112254981 is about 1036.0994737225.

The spelling of 1112254981 in words is "one billion, one hundred twelve million, two hundred fifty-four thousand, nine hundred eighty-one".