1155485227 has 16 divisors (see below), whose sum is σ = 1286433792. Its totient is φ = 1030649760.

The previous prime is 1155485213. The next prime is 1155485231. The reversal of 1155485227 is 7225845511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155485227 is a prime.

It is a super-2 number, since 2×1155485227² = 2670292219630483058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155485227.

It is not an unprimeable number, because it can be changed into a prime (1155485327) 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 15 ways as a sum of consecutive naturals, for example, 331548 + ... + 335014.

It is an arithmetic number, because the mean of its divisors is an integer number (80402112).

Almost surely, 2^1155485227 is an apocalyptic number.

1155485227 is a deficient number, since it is larger than the sum of its proper divisors (130948565).

1155485227 is a wasteful number, since it uses less digits than its factorization.

1155485227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338.

The product of its digits is 112000, while the sum is 40.

The square root of 1155485227 is about 33992.4289658742. The cubic root of 1155485227 is about 1049.3526552524.

The spelling of 1155485227 in words is "one billion, one hundred fifty-five million, four hundred eighty-five thousand, two hundred twenty-seven".