1080863243 has 2 divisors, whose sum is σ = 1080863244. Its totient is φ = 1080863242.

The previous prime is 1080863239. The next prime is 1080863249. The reversal of 1080863243 is 3423680801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1080863243 - 2² = 1080863239 is a prime.

It is not a weakly prime, because it can be changed into another prime (1080863249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540431621 + 540431622.

It is an arithmetic number, because the mean of its divisors is an integer number (540431622).

Almost surely, 2^1080863243 is an apocalyptic number.

1080863243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1080863243 is an equidigital number, since it uses as much as digits as its factorization.

1080863243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 1080863243 is about 32876.4846508869. The cubic root of 1080863243 is about 1026.2588516453.

The spelling of 1080863243 in words is "one billion, eighty million, eight hundred sixty-three thousand, two hundred forty-three".