1163157001 has 2 divisors, whose sum is σ = 1163157002. Its totient is φ = 1163157000.

The previous prime is 1163156999. The next prime is 1163157007. The reversal of 1163157001 is 1007513611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1159470601 + 3686400 = 34051^2 + 1920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163157001 - 2¹ = 1163156999 is a prime.

Together with 1163156999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1163157007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581578500 + 581578501.

It is an arithmetic number, because the mean of its divisors is an integer number (581578501).

Almost surely, 2^1163157001 is an apocalyptic number.

It is an amenable number.

1163157001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163157001 is an equidigital number, since it uses as much as digits as its factorization.

1163157001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 1163157001 is about 34105.0876116746. The cubic root of 1163157001 is about 1051.6699054582.

The spelling of 1163157001 in words is "one billion, one hundred sixty-three million, one hundred fifty-seven thousand, one".