1155241241 has 32 divisors (see below), whose sum is σ = 1469905920. Its totient is φ = 881812800.

The previous prime is 1155241223. The next prime is 1155241259. The reversal of 1155241241 is 1421425511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1155241223) and next prime (1155241259).

It is not a de Polignac number, because 1155241241 - 2⁶ = 1155241177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155241241.

It is not an unprimeable number, because it can be changed into a prime (1155241201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1967750 + ... + 1968336.

It is an arithmetic number, because the mean of its divisors is an integer number (45934560).

Almost surely, 2^1155241241 is an apocalyptic number.

1155241241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1155241241 is a deficient number, since it is larger than the sum of its proper divisors (314664679).

1155241241 is a wasteful number, since it uses less digits than its factorization.

1155241241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085.

The product of its digits is 1600, while the sum is 26.

The square root of 1155241241 is about 33988.8399478417. The cubic root of 1155241241 is about 1049.2787915129.

Adding to 1155241241 its reverse (1421425511), we get a palindrome (2576666752).

The spelling of 1155241241 in words is "one billion, one hundred fifty-five million, two hundred forty-one thousand, two hundred forty-one".