1105144140 has 24 divisors (see below), whose sum is σ = 3094403760. Its totient is φ = 294705088.

The previous prime is 1105144111. The next prime is 1105144171. The reversal of 1105144140 is 414415011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9209475 + ... + 9209594.

It is an arithmetic number, because the mean of its divisors is an integer number (128933490).

Almost surely, 2^1105144140 is an apocalyptic number.

1105144140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105144140 is an abundant number, since it is smaller than the sum of its proper divisors (1989259620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1105144140 is a wasteful number, since it uses less digits than its factorization.

1105144140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18419081 (or 18419079 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1105144140 is about 33243.7082769056. The cubic root of 1105144140 is about 1033.8867630872.

Adding to 1105144140 its reverse (414415011), we get a palindrome (1519559151).

The spelling of 1105144140 in words is "one billion, one hundred five million, one hundred forty-four thousand, one hundred forty".