112801643 has 2 divisors, whose sum is σ = 112801644. Its totient is φ = 112801642.

The previous prime is 112801639. The next prime is 112801721. The reversal of 112801643 is 346108211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112801643 - 2² = 112801639 is a prime.

It is not a weakly prime, because it can be changed into another prime (112801243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56400821 + 56400822.

It is an arithmetic number, because the mean of its divisors is an integer number (56400822).

Almost surely, 2^112801643 is an apocalyptic number.

112801643 is a deficient number, since it is larger than the sum of its proper divisors (1).

112801643 is an equidigital number, since it uses as much as digits as its factorization.

112801643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 112801643 is about 10620.8117862996. The cubic root of 112801643 is about 483.1757637248.

Adding to 112801643 its reverse (346108211), we get a palindrome (458909854).

The spelling of 112801643 in words is "one hundred twelve million, eight hundred one thousand, six hundred forty-three".