112813409 has 2 divisors, whose sum is σ = 112813410. Its totient is φ = 112813408.

The previous prime is 112813399. The next prime is 112813423. The reversal of 112813409 is 904318211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109662784 + 3150625 = 10472^2 + 1775^2 .

It is a cyclic number.

It is not a de Polignac number, because 112813409 - 2⁸ = 112813153 is a prime.

It is a super-3 number, since 3×112813409³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112813709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56406704 + 56406705.

It is an arithmetic number, because the mean of its divisors is an integer number (56406705).

Almost surely, 2^112813409 is an apocalyptic number.

It is an amenable number.

112813409 is a deficient number, since it is larger than the sum of its proper divisors (1).

112813409 is an equidigital number, since it uses as much as digits as its factorization.

112813409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 112813409 is about 10621.3656843176. The cubic root of 112813409 is about 483.1925626775.

The spelling of 112813409 in words is "one hundred twelve million, eight hundred thirteen thousand, four hundred nine".