112863809 has 2 divisors, whose sum is σ = 112863810. Its totient is φ = 112863808.

The previous prime is 112863797. The next prime is 112863811. The reversal of 112863809 is 908368211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103469584 + 9394225 = 10172^2 + 3065^2 .

It is a cyclic number.

It is not a de Polignac number, because 112863809 - 2¹² = 112859713 is a prime.

Together with 112863811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112863869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56431904 + 56431905.

It is an arithmetic number, because the mean of its divisors is an integer number (56431905).

Almost surely, 2^112863809 is an apocalyptic number.

It is an amenable number.

112863809 is a deficient number, since it is larger than the sum of its proper divisors (1).

112863809 is an equidigital number, since it uses as much as digits as its factorization.

112863809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 112863809 is about 10623.7379956398. The cubic root of 112863809 is about 483.2645082605.

The spelling of 112863809 in words is "one hundred twelve million, eight hundred sixty-three thousand, eight hundred nine".