112015643 has 2 divisors, whose sum is σ = 112015644. Its totient is φ = 112015642.

The previous prime is 112015639. The next prime is 112015663. The reversal of 112015643 is 346510211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112015643 - 2² = 112015639 is a prime.

It is not a weakly prime, because it can be changed into another prime (112015633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56007821 + 56007822.

It is an arithmetic number, because the mean of its divisors is an integer number (56007822).

Almost surely, 2^112015643 is an apocalyptic number.

112015643 is a deficient number, since it is larger than the sum of its proper divisors (1).

112015643 is an equidigital number, since it uses as much as digits as its factorization.

112015643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 112015643 is about 10583.7442807354. The cubic root of 112015643 is about 482.0508933709.

Adding to 112015643 its reverse (346510211), we get a palindrome (458525854).

The spelling of 112015643 in words is "one hundred twelve million, fifteen thousand, six hundred forty-three".