112461809 has 2 divisors, whose sum is σ = 112461810. Its totient is φ = 112461808.

The previous prime is 112461803. The next prime is 112461821. The reversal of 112461809 is 908164211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62094400 + 50367409 = 7880^2 + 7097^2 .

It is a cyclic number.

It is not a de Polignac number, because 112461809 - 2²⁰ = 111413233 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (112461803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56230904 + 56230905.

It is an arithmetic number, because the mean of its divisors is an integer number (56230905).

Almost surely, 2^112461809 is an apocalyptic number.

It is an amenable number.

112461809 is a deficient number, since it is larger than the sum of its proper divisors (1).

112461809 is an equidigital number, since it uses as much as digits as its factorization.

112461809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 112461809 is about 10604.8012239740. The cubic root of 112461809 is about 482.6900594460.

The spelling of 112461809 in words is "one hundred twelve million, four hundred sixty-one thousand, eight hundred nine".