1235005241 has 2 divisors, whose sum is σ = 1235005242. Its totient is φ = 1235005240.

The previous prime is 1235005201. The next prime is 1235005243. The reversal of 1235005241 is 1425005321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 621006400 + 613998841 = 24920^2 + 24779^2 .

It is an emirp because it is prime and its reverse (1425005321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1235005241 - 2¹⁰ = 1235004217 is a prime.

It is a super-3 number, since 3×1235005241³ (a number of 28 digits) contains 333 as substring.

It is a Sophie Germain prime.

Together with 1235005243, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1235005243) 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, 617502620 + 617502621.

It is an arithmetic number, because the mean of its divisors is an integer number (617502621).

Almost surely, 2^1235005241 is an apocalyptic number.

It is an amenable number.

1235005241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235005241 is an equidigital number, since it uses as much as digits as its factorization.

1235005241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1235005241 is about 35142.6413492213. The cubic root of 1235005241 is about 1072.8926420105.

The spelling of 1235005241 in words is "one billion, two hundred thirty-five million, five thousand, two hundred forty-one".