1128738255 has 8 divisors (see below), whose sum is σ = 1805981232. Its totient is φ = 601993728.

The previous prime is 1128738253. The next prime is 1128738277. The reversal of 1128738255 is 5528378211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1128738255 - 2¹ = 1128738253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128738253) 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 7 ways as a sum of consecutive naturals, for example, 37624594 + ... + 37624623.

It is an arithmetic number, because the mean of its divisors is an integer number (225747654).

Almost surely, 2^1128738255 is an apocalyptic number.

1128738255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1128738255 is a deficient number, since it is larger than the sum of its proper divisors (677242977).

1128738255 is an equidigital number, since it uses as much as digits as its factorization.

1128738255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75249225.

The product of its digits is 134400, while the sum is 42.

The square root of 1128738255 is about 33596.7000611667. The cubic root of 1128738255 is about 1041.1926206824.

The spelling of 1128738255 in words is "one billion, one hundred twenty-eight million, seven hundred thirty-eight thousand, two hundred fifty-five".