1156233055 has 4 divisors (see below), whose sum is σ = 1387479672. Its totient is φ = 924986440.

The previous prime is 1156233047. The next prime is 1156233073. The reversal of 1156233055 is 5503326511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1156233055 - 2³ = 1156233047 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 115623301 + ... + 115623310.

It is an arithmetic number, because the mean of its divisors is an integer number (346869918).

Almost surely, 2^1156233055 is an apocalyptic number.

1156233055 is a deficient number, since it is larger than the sum of its proper divisors (231246617).

1156233055 is an equidigital number, since it uses as much as digits as its factorization.

1156233055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231246616.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 1156233055 is about 34003.4271066903. The cubic root of 1156233055 is about 1049.5789861614.

Adding to 1156233055 its reverse (5503326511), we get a palindrome (6659559566).

The spelling of 1156233055 in words is "one billion, one hundred fifty-six million, two hundred thirty-three thousand, fifty-five".