1135643 has 2 divisors, whose sum is σ = 1135644. Its totient is φ = 1135642.

The previous prime is 1135633. The next prime is 1135657. The reversal of 1135643 is 3465311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1135643 - 2¹⁰ = 1134619 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1135613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567821 + 567822.

It is an arithmetic number, because the mean of its divisors is an integer number (567822).

2^1135643 is an apocalyptic number.

1135643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135643 is an equidigital number, since it uses as much as digits as its factorization.

1135643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 1135643 is about 1065.6655197575. The cubic root of 1135643 is about 104.3311375812.

The spelling of 1135643 in words is "one million, one hundred thirty-five thousand, six hundred forty-three".