112457809 has 2 divisors, whose sum is σ = 112457810. Its totient is φ = 112457808.

The previous prime is 112457797. The next prime is 112457861. The reversal of 112457809 is 908754211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99062209 + 13395600 = 9953^2 + 3660^2 .

It is a cyclic number.

It is not a de Polignac number, because 112457809 - 2⁵ = 112457777 is a prime.

It is not a weakly prime, because it can be changed into another prime (112457309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56228904 + 56228905.

It is an arithmetic number, because the mean of its divisors is an integer number (56228905).

Almost surely, 2^112457809 is an apocalyptic number.

It is an amenable number.

112457809 is a deficient number, since it is larger than the sum of its proper divisors (1).

112457809 is an equidigital number, since it uses as much as digits as its factorization.

112457809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 112457809 is about 10604.6126284745. The cubic root of 112457809 is about 482.6843366643.

The spelling of 112457809 in words is "one hundred twelve million, four hundred fifty-seven thousand, eight hundred nine".