1155122441 has 4 divisors (see below), whose sum is σ = 1260133584. Its totient is φ = 1050111300.

The previous prime is 1155122417. The next prime is 1155122453. The reversal of 1155122441 is 1442215511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1155122441 - 2¹⁸ = 1154860297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155122441.

It is not an unprimeable number, because it can be changed into a prime (1155122471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52505555 + ... + 52505576.

It is an arithmetic number, because the mean of its divisors is an integer number (315033396).

Almost surely, 2^1155122441 is an apocalyptic number.

1155122441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1155122441 is a deficient number, since it is larger than the sum of its proper divisors (105011143).

1155122441 is a wasteful number, since it uses less digits than its factorization.

1155122441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105011142.

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

The square root of 1155122441 is about 33987.0922704488. The cubic root of 1155122441 is about 1049.2428225195.

Adding to 1155122441 its reverse (1442215511), we get a palindrome (2597337952).

The spelling of 1155122441 in words is "one billion, one hundred fifty-five million, one hundred twenty-two thousand, four hundred forty-one".