1163061255 has 32 divisors (see below), whose sum is σ = 1924651008. Its totient is φ = 599126400.

The previous prime is 1163061209. The next prime is 1163061257. The reversal of 1163061255 is 5521603611.

It is not a de Polignac number, because 1163061255 - 2⁷ = 1163061127 is a prime.

It is a super-2 number, since 2×1163061255² = 2705422965764350050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163061257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270825 + ... + 275085.

It is an arithmetic number, because the mean of its divisors is an integer number (60145344).

Almost surely, 2^1163061255 is an apocalyptic number.

1163061255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1163061255 is a deficient number, since it is larger than the sum of its proper divisors (761589753).

1163061255 is a wasteful number, since it uses less digits than its factorization.

1163061255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1163061255 is about 34103.6838919199. The cubic root of 1163061255 is about 1051.6410483765.

Adding to 1163061255 its reverse (5521603611), we get a palindrome (6684664866).

The spelling of 1163061255 in words is "one billion, one hundred sixty-three million, sixty-one thousand, two hundred fifty-five".