1145541044 has 12 divisors (see below), whose sum is σ = 2006428704. Its totient is φ = 572275704.

The previous prime is 1145541041. The next prime is 1145541049. The reversal of 1145541044 is 4401455411.

It is a junction number, because it is equal to n+sod(n) for n = 1145540998 and 1145541016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145541041) 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, 118472 + ... + 127775.

It is an arithmetic number, because the mean of its divisors is an integer number (167202392).

Almost surely, 2^1145541044 is an apocalyptic number.

It is an amenable number.

1145541044 is a deficient number, since it is larger than the sum of its proper divisors (860887660).

1145541044 is a wasteful number, since it uses less digits than its factorization.

1145541044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247414 (or 247412 counting only the distinct ones).

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

The square root of 1145541044 is about 33845.8423443707. The cubic root of 1145541044 is about 1046.3337118745. Note that the first 3 decimals are identical.

Adding to 1145541044 its reverse (4401455411), we get a palindrome (5546996455).

The spelling of 1145541044 in words is "one billion, one hundred forty-five million, five hundred forty-one thousand, forty-four".