1155241043 has 8 divisors (see below), whose sum is σ = 1260509376. Its totient is φ = 1050013800.

The previous prime is 1155241039. The next prime is 1155241049. The reversal of 1155241043 is 3401425511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1155241043 - 2² = 1155241039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155241049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100628 + ... + 111518.

It is an arithmetic number, because the mean of its divisors is an integer number (157563672).

Almost surely, 2^1155241043 is an apocalyptic number.

1155241043 is a deficient number, since it is larger than the sum of its proper divisors (105268333).

1155241043 is a wasteful number, since it uses less digits than its factorization.

1155241043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20545.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1155241043 is about 33988.8370351208. The cubic root of 1155241043 is about 1049.2787315666.

Adding to 1155241043 its reverse (3401425511), we get a palindrome (4556666554).

The spelling of 1155241043 in words is "one billion, one hundred fifty-five million, two hundred forty-one thousand, forty-three".