1115144055 has 24 divisors (see below), whose sum is σ = 1940636880. Its totient is φ = 592368000.

The previous prime is 1115144039. The next prime is 1115144057. The reversal of 1115144055 is 5504415111.

It is not a de Polignac number, because 1115144055 - 2⁴ = 1115144039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115144057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38070 + ... + 60659.

It is an arithmetic number, because the mean of its divisors is an integer number (80859870).

Almost surely, 2^1115144055 is an apocalyptic number.

1115144055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1115144055 is a deficient number, since it is larger than the sum of its proper divisors (825492825).

1115144055 is a wasteful number, since it uses less digits than its factorization.

1115144055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98991 (or 98988 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 1115144055 is about 33393.7726979148. The cubic root of 1115144055 is about 1036.9957849956.

Adding to 1115144055 its reverse (5504415111), we get a palindrome (6619559166).

The spelling of 1115144055 in words is "one billion, one hundred fifteen million, one hundred forty-four thousand, fifty-five".