112643137 has 2 divisors, whose sum is σ = 112643138. Its totient is φ = 112643136.

The previous prime is 112643129. The next prime is 112643171. The reversal of 112643137 is 731346211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111007296 + 1635841 = 10536^2 + 1279^2 .

It is an emirp because it is prime and its reverse (731346211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112643137 - 2³ = 112643129 is a prime.

It is not a weakly prime, because it can be changed into another prime (112643197) 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, 56321568 + 56321569.

It is an arithmetic number, because the mean of its divisors is an integer number (56321569).

Almost surely, 2^112643137 is an apocalyptic number.

It is an amenable number.

112643137 is a deficient number, since it is larger than the sum of its proper divisors (1).

112643137 is an equidigital number, since it uses as much as digits as its factorization.

112643137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 112643137 is about 10613.3471157783. The cubic root of 112643137 is about 482.9493422060.

Adding to 112643137 its reverse (731346211), we get a palindrome (843989348).

The spelling of 112643137 in words is "one hundred twelve million, six hundred forty-three thousand, one hundred thirty-seven".