1241182181 has 2 divisors, whose sum is σ = 1241182182. Its totient is φ = 1241182180.

The previous prime is 1241182133. The next prime is 1241182207. The reversal of 1241182181 is 1812811421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1220104900 + 21077281 = 34930^2 + 4591^2 .

It is an emirp because it is prime and its reverse (1812811421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1241182181 - 2¹⁴ = 1241165797 is a prime.

It is a super-2 number, since 2×1241182181² = 3081066412863833522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241182081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620591090 + 620591091.

It is an arithmetic number, because the mean of its divisors is an integer number (620591091).

Almost surely, 2^1241182181 is an apocalyptic number.

It is an amenable number.

1241182181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241182181 is an equidigital number, since it uses as much as digits as its factorization.

1241182181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1024, while the sum is 29.

The square root of 1241182181 is about 35230.4155666663. The cubic root of 1241182181 is about 1074.6783767613.

The spelling of 1241182181 in words is "one billion, two hundred forty-one million, one hundred eighty-two thousand, one hundred eighty-one".