1159427555 has 32 divisors (see below), whose sum is σ = 1637314560. Its totient is φ = 777041280.

The previous prime is 1159427551. The next prime is 1159427567. The reversal of 1159427555 is 5557249511.

It is not a de Polignac number, because 1159427555 - 2² = 1159427551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1159427551) 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 31 ways as a sum of consecutive naturals, for example, 616106 + ... + 617984.

It is an arithmetic number, because the mean of its divisors is an integer number (51166080).

Almost surely, 2^1159427555 is an apocalyptic number.

1159427555 is a deficient number, since it is larger than the sum of its proper divisors (477887005).

1159427555 is a wasteful number, since it uses less digits than its factorization.

1159427555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771.

The product of its digits is 315000, while the sum is 44.

The square root of 1159427555 is about 34050.3679128435. The cubic root of 1159427555 is about 1050.5447075475.

The spelling of 1159427555 in words is "one billion, one hundred fifty-nine million, four hundred twenty-seven thousand, five hundred fifty-five".