1163943255 has 16 divisors (see below), whose sum is σ = 1881510624. Its totient is φ = 614369280.

The previous prime is 1163943251. The next prime is 1163943271. The reversal of 1163943255 is 5523493611.

It is not a de Polignac number, because 1163943255 - 2² = 1163943251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163943251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398526 + ... + 401435.

It is an arithmetic number, because the mean of its divisors is an integer number (117594414).

Almost surely, 2^1163943255 is an apocalyptic number.

1163943255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1163943255 is a deficient number, since it is larger than the sum of its proper divisors (717567369).

1163943255 is an equidigital number, since it uses as much as digits as its factorization.

1163943255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800066.

The product of its digits is 97200, while the sum is 39.

The square root of 1163943255 is about 34116.6125956256. The cubic root of 1163943255 is about 1051.9068162751.

The spelling of 1163943255 in words is "one billion, one hundred sixty-three million, nine hundred forty-three thousand, two hundred fifty-five".