1138040255 has 16 divisors (see below), whose sum is σ = 1490859648. Its totient is φ = 827076000.

The previous prime is 1138040251. The next prime is 1138040257. The reversal of 1138040255 is 5520408311.

It is not a de Polignac number, because 1138040255 - 2² = 1138040251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138040251) 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, 79820 + ... + 92990.

It is an arithmetic number, because the mean of its divisors is an integer number (93178728).

Almost surely, 2^1138040255 is an apocalyptic number.

1138040255 is a deficient number, since it is larger than the sum of its proper divisors (352819393).

1138040255 is a wasteful number, since it uses less digits than its factorization.

1138040255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14758.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1138040255 is about 33734.8522302974. The cubic root of 1138040255 is about 1044.0449765443.

Adding to 1138040255 its reverse (5520408311), we get a palindrome (6658448566).

The spelling of 1138040255 in words is "one billion, one hundred thirty-eight million, forty thousand, two hundred fifty-five".