1153440241 has 2 divisors, whose sum is σ = 1153440242. Its totient is φ = 1153440240.

The previous prime is 1153440203. The next prime is 1153440269. The reversal of 1153440241 is 1420443511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 784224016 + 369216225 = 28004^2 + 19215^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153440241 - 2¹¹ = 1153438193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1153450241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576720120 + 576720121.

It is an arithmetic number, because the mean of its divisors is an integer number (576720121).

Almost surely, 2^1153440241 is an apocalyptic number.

It is an amenable number.

1153440241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153440241 is an equidigital number, since it uses as much as digits as its factorization.

1153440241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1153440241 is about 33962.3356234520. The cubic root of 1153440241 is about 1048.7332390871.

Adding to 1153440241 its reverse (1420443511), we get a palindrome (2573883752).

The spelling of 1153440241 in words is "one billion, one hundred fifty-three million, four hundred forty thousand, two hundred forty-one".