1163245001 has 2 divisors, whose sum is σ = 1163245002. Its totient is φ = 1163245000.

The previous prime is 1163244967. The next prime is 1163245019. The reversal of 1163245001 is 1005423611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 653569225 + 509675776 = 25565^2 + 22576^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1163245001 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1163245021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581622500 + 581622501.

It is an arithmetic number, because the mean of its divisors is an integer number (581622501).

Almost surely, 2^1163245001 is an apocalyptic number.

It is an amenable number.

1163245001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163245001 is an equidigital number, since it uses as much as digits as its factorization.

1163245001 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 23.

The square root of 1163245001 is about 34106.3777173713. The cubic root of 1163245001 is about 1051.6964265606.

Adding to 1163245001 its reverse (1005423611), we get a palindrome (2168668612).

The spelling of 1163245001 in words is "one billion, one hundred sixty-three million, two hundred forty-five thousand, one".