1144155044 has 12 divisors (see below), whose sum is σ = 2004597504. Its totient is φ = 571412904.

The previous prime is 1144155041. The next prime is 1144155139. The reversal of 1144155044 is 4405514411.

It is a junction number, because it is equal to n+sod(n) for n = 1144154998 and 1144155016.

It is not an unprimeable number, because it can be changed into a prime (1144155041) 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, 162272 + ... + 169175.

It is an arithmetic number, because the mean of its divisors is an integer number (167049792).

Almost surely, 2^1144155044 is an apocalyptic number.

It is an amenable number.

1144155044 is a deficient number, since it is larger than the sum of its proper divisors (860442460).

1144155044 is a wasteful number, since it uses less digits than its factorization.

1144155044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332314 (or 332312 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 1144155044 is about 33825.3609589018. The cubic root of 1144155044 is about 1045.9115521730.

Adding to 1144155044 its reverse (4405514411), we get a palindrome (5549669455).

The spelling of 1144155044 in words is "one billion, one hundred forty-four million, one hundred fifty-five thousand, forty-four".