1166136241 has 2 divisors, whose sum is σ = 1166136242. Its totient is φ = 1166136240.

The previous prime is 1166136161. The next prime is 1166136247. The reversal of 1166136241 is 1426316611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 969014641 + 197121600 = 31129^2 + 14040^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166136241 - 2⁷ = 1166136113 is a prime.

It is a super-2 number, since 2×1166136241² = 2719747465147220162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1166136247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583068120 + 583068121.

It is an arithmetic number, because the mean of its divisors is an integer number (583068121).

Almost surely, 2^1166136241 is an apocalyptic number.

It is an amenable number.

1166136241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166136241 is an equidigital number, since it uses as much as digits as its factorization.

1166136241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 1166136241 is about 34148.7370337469. The cubic root of 1166136241 is about 1052.5670345081.

The spelling of 1166136241 in words is "one billion, one hundred sixty-six million, one hundred thirty-six thousand, two hundred forty-one".