1155622275 has 48 divisors (see below), whose sum is σ = 2234678400. Its totient is φ = 583886880.

The previous prime is 1155622271. The next prime is 1155622301. The reversal of 1155622275 is 5722265511.

1155622275 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 622 + 27 + 5 = 666.

It is not a de Polignac number, because 1155622275 - 2² = 1155622271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1155622271) 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 47 ways as a sum of consecutive naturals, for example, 32229 + ... + 57878.

It is an arithmetic number, because the mean of its divisors is an integer number (46555800).

Almost surely, 2^1155622275 is an apocalyptic number.

1155622275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1155622275 is a deficient number, since it is larger than the sum of its proper divisors (1079056125).

1155622275 is a wasteful number, since it uses less digits than its factorization.

1155622275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90145 (or 90134 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 1155622275 is about 33994.4447667556. Note that the first 3 decimals coincide. The cubic root of 1155622275 is about 1049.3941402765.

Adding to 1155622275 its reverse (5722265511), we get a palindrome (6877887786).

The spelling of 1155622275 in words is "one billion, one hundred fifty-five million, six hundred twenty-two thousand, two hundred seventy-five".