1163208643 has 2 divisors, whose sum is σ = 1163208644. Its totient is φ = 1163208642.

The previous prime is 1163208583. The next prime is 1163208667. The reversal of 1163208643 is 3468023611.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1163208643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1163208599 and 1163208608.

It is not a weakly prime, because it can be changed into another prime (1163208043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581604321 + 581604322.

It is an arithmetic number, because the mean of its divisors is an integer number (581604322).

Almost surely, 2^1163208643 is an apocalyptic number.

1163208643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163208643 is an equidigital number, since it uses as much as digits as its factorization.

1163208643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1163208643 is about 34105.8447043905. The cubic root of 1163208643 is about 1051.6854692882.

The spelling of 1163208643 in words is "one billion, one hundred sixty-three million, two hundred eight thousand, six hundred forty-three".