1155044 has 12 divisors (see below), whose sum is σ = 2205168. Its totient is φ = 525000.

The previous prime is 1155019. The next prime is 1155053. The reversal of 1155044 is 4405511.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13082 + ... + 13169.

It is an arithmetic number, because the mean of its divisors is an integer number (183764).

2^1155044 is an apocalyptic number.

It is an amenable number.

1155044 is a deficient number, since it is larger than the sum of its proper divisors (1050124).

1155044 is a wasteful number, since it uses less digits than its factorization.

1155044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26266 (or 26264 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1155044 is about 1074.7297334679. The cubic root of 1155044 is about 104.9219071641.

It can be divided in two parts, 11 and 55044, that added together give a palindrome (55055).

The spelling of 1155044 in words is "one million, one hundred fifty-five thousand, forty-four".