1115042055 has 16 divisors (see below), whose sum is σ = 1786113504. Its totient is φ = 594007040.

The previous prime is 1115042051. The next prime is 1115042161. The reversal of 1115042055 is 5502405111.

It is not a de Polignac number, because 1115042055 - 2² = 1115042051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115042051) 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 15 ways as a sum of consecutive naturals, for example, 28974 + ... + 55403.

It is an arithmetic number, because the mean of its divisors is an integer number (111632094).

Almost surely, 2^1115042055 is an apocalyptic number.

1115042055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1115042055 is a deficient number, since it is larger than the sum of its proper divisors (671071449).

1115042055 is an equidigital number, since it uses as much as digits as its factorization.

1115042055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85266.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 1115042055 is about 33392.2454321359. The cubic root of 1115042055 is about 1036.9641667203.

Adding to 1115042055 its reverse (5502405111), we get a palindrome (6617447166).

The spelling of 1115042055 in words is "one billion, one hundred fifteen million, forty-two thousand, fifty-five".