1140155255 has 16 divisors (see below), whose sum is σ = 1387152000. Its totient is φ = 899508480.

The previous prime is 1140155243. The next prime is 1140155257. The reversal of 1140155255 is 5525510411.

It is not a de Polignac number, because 1140155255 - 2²⁸ = 871719799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140155257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584021 + ... + 585969.

It is an arithmetic number, because the mean of its divisors is an integer number (86697000).

Almost surely, 2^1140155255 is an apocalyptic number.

1140155255 is a deficient number, since it is larger than the sum of its proper divisors (246996745).

1140155255 is a wasteful number, since it uses less digits than its factorization.

1140155255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 1140155255 is about 33766.1850821202. The cubic root of 1140155255 is about 1044.6913475331.

Adding to 1140155255 its reverse (5525510411), we get a palindrome (6665665666).

The spelling of 1140155255 in words is "one billion, one hundred forty million, one hundred fifty-five thousand, two hundred fifty-five".