1155540022 has 64 divisors (see below), whose sum is σ = 2180795904. Its totient is φ = 447068160.

The previous prime is 1155540011. The next prime is 1155540037. The reversal of 1155540022 is 2200455511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2353197 + ... + 2353687.

It is an arithmetic number, because the mean of its divisors is an integer number (34074936).

Almost surely, 2^1155540022 is an apocalyptic number.

1155540022 is a deficient number, since it is larger than the sum of its proper divisors (1025255882).

1155540022 is a wasteful number, since it uses less digits than its factorization.

1155540022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1155540022 is about 33993.2349446180. The cubic root of 1155540022 is about 1049.3692423301.

Adding to 1155540022 its reverse (2200455511), we get a palindrome (3355995533).

The spelling of 1155540022 in words is "one billion, one hundred fifty-five million, five hundred forty thousand, twenty-two".