112525981 has 2 divisors, whose sum is σ = 112525982. Its totient is φ = 112525980.

The previous prime is 112525979. The next prime is 112526021. The reversal of 112525981 is 189525211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110061081 + 2464900 = 10491^2 + 1570^2 .

It is a cyclic number.

It is not a de Polignac number, because 112525981 - 2¹ = 112525979 is a prime.

It is a super-2 number, since 2×112525981² = 25324192800024722, which contains 22 as substring.

Together with 112525979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112522981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56262990 + 56262991.

It is an arithmetic number, because the mean of its divisors is an integer number (56262991).

Almost surely, 2^112525981 is an apocalyptic number.

It is an amenable number.

112525981 is a deficient number, since it is larger than the sum of its proper divisors (1).

112525981 is an equidigital number, since it uses as much as digits as its factorization.

112525981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 34.

The square root of 112525981 is about 10607.8264031799. The cubic root of 112525981 is about 482.7818514864.

The spelling of 112525981 in words is "one hundred twelve million, five hundred twenty-five thousand, nine hundred eighty-one".