1163005801 has 2 divisors, whose sum is σ = 1163005802. Its totient is φ = 1163005800.

The previous prime is 1163005799. The next prime is 1163005849. The reversal of 1163005801 is 1085003611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1135757401 + 27248400 = 33701^2 + 5220^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163005801 - 2¹ = 1163005799 is a prime.

Together with 1163005799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1163005861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581502900 + 581502901.

It is an arithmetic number, because the mean of its divisors is an integer number (581502901).

Almost surely, 2^1163005801 is an apocalyptic number.

It is an amenable number.

1163005801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163005801 is an equidigital number, since it uses as much as digits as its factorization.

1163005801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1163005801 is about 34102.8708615565. The cubic root of 1163005801 is about 1051.6243342584.

The spelling of 1163005801 in words is "one billion, one hundred sixty-three million, five thousand, eight hundred one".