1163651441 has 2 divisors, whose sum is σ = 1163651442. Its totient is φ = 1163651440.

The previous prime is 1163651417. The next prime is 1163651449. The reversal of 1163651441 is 1441563611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1134275041 + 29376400 = 33679^2 + 5420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1163651441 is a prime.

It is a super-2 number, since 2×1163651441² = 2708169352282752962, 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 = 1163651398 and 1163651407.

It is not a weakly prime, because it can be changed into another prime (1163651449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581825720 + 581825721.

It is an arithmetic number, because the mean of its divisors is an integer number (581825721).

Almost surely, 2^1163651441 is an apocalyptic number.

It is an amenable number.

1163651441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163651441 is an equidigital number, since it uses as much as digits as its factorization.

1163651441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 1163651441 is about 34112.3356133819. The cubic root of 1163651441 is about 1051.8189005367.

The spelling of 1163651441 in words is "one billion, one hundred sixty-three million, six hundred fifty-one thousand, four hundred forty-one".