1131078255 has 64 divisors (see below), whose sum is σ = 1959966720. Its totient is φ = 554932224.

The previous prime is 1131078253. The next prime is 1131078257. The reversal of 1131078255 is 5528701311.

It is an interprime number because it is at equal distance from previous prime (1131078253) and next prime (1131078257).

It is not a de Polignac number, because 1131078255 - 2¹ = 1131078253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131078253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4083177 + ... + 4083453.

It is an arithmetic number, because the mean of its divisors is an integer number (30624480).

Almost surely, 2^1131078255 is an apocalyptic number.

1131078255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1131078255 is a deficient number, since it is larger than the sum of its proper divisors (828888465).

1131078255 is a wasteful number, since it uses less digits than its factorization.

1131078255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 1131078255 is about 33631.5068797103. The cubic root of 1131078255 is about 1041.9116267707.

Adding to 1131078255 its reverse (5528701311), we get a palindrome (6659779566).

The spelling of 1131078255 in words is "one billion, one hundred thirty-one million, seventy-eight thousand, two hundred fifty-five".