1155520014 has 16 divisors (see below), whose sum is σ = 2521134720. Its totient is φ = 350157560.

The previous prime is 1155519949. The next prime is 1155520021. The reversal of 1155520014 is 4100255511.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8753874 + ... + 8754005.

It is an arithmetic number, because the mean of its divisors is an integer number (157570920).

Almost surely, 2^1155520014 is an apocalyptic number.

1155520014 is an abundant number, since it is smaller than the sum of its proper divisors (1365614706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155520014 is a wasteful number, since it uses less digits than its factorization.

1155520014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17507895.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 1155520014 is about 33992.9406494937. The cubic root of 1155520014 is about 1049.3631857388.

Adding to 1155520014 its reverse (4100255511), we get a palindrome (5255775525).

The spelling of 1155520014 in words is "one billion, one hundred fifty-five million, five hundred twenty thousand, fourteen".