1115843 has 2 divisors, whose sum is σ = 1115844. Its totient is φ = 1115842.

The previous prime is 1115839. The next prime is 1115857. The reversal of 1115843 is 3485111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1115843 - 2² = 1115839 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1115743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557921 + 557922.

It is an arithmetic number, because the mean of its divisors is an integer number (557922).

2^1115843 is an apocalyptic number.

1115843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115843 is an equidigital number, since it uses as much as digits as its factorization.

1115843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 23.

The square root of 1115843 is about 1056.3347007459. The cubic root of 1115843 is about 103.7212394272.

The spelling of 1115843 in words is "one million, one hundred fifteen thousand, eight hundred forty-three".