1163985041 has 2 divisors, whose sum is σ = 1163985042. Its totient is φ = 1163985040.

The previous prime is 1163985007. The next prime is 1163985059. The reversal of 1163985041 is 1405893611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 899760016 + 264225025 = 29996^2 + 16255^2 .

It is an emirp because it is prime and its reverse (1405893611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1163985041 - 2¹⁴ = 1163968657 is a prime.

It is a super-2 number, since 2×1163985041² = 2709722351343543362, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1163984986 and 1163985004.

It is not a weakly prime, because it can be changed into another prime (1163985091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581992520 + 581992521.

It is an arithmetic number, because the mean of its divisors is an integer number (581992521).

Almost surely, 2^1163985041 is an apocalyptic number.

It is an amenable number.

1163985041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163985041 is an equidigital number, since it uses as much as digits as its factorization.

1163985041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1163985041 is about 34117.2249897321. The cubic root of 1163985041 is about 1051.9194040743.

The spelling of 1163985041 in words is "one billion, one hundred sixty-three million, nine hundred eighty-five thousand, forty-one".