1140321055 has 4 divisors (see below), whose sum is σ = 1368385272. Its totient is φ = 912256840.

The previous prime is 1140321047. The next prime is 1140321059. The reversal of 1140321055 is 5501230411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1140321055 - 2³ = 1140321047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140321059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114032101 + ... + 114032110.

It is an arithmetic number, because the mean of its divisors is an integer number (342096318).

Almost surely, 2^1140321055 is an apocalyptic number.

1140321055 is a deficient number, since it is larger than the sum of its proper divisors (228064217).

1140321055 is an equidigital number, since it uses as much as digits as its factorization.

1140321055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228064216.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1140321055 is about 33768.6401117960. The cubic root of 1140321055 is about 1044.7419843299.

Adding to 1140321055 its reverse (5501230411), we get a palindrome (6641551466).

The spelling of 1140321055 in words is "one billion, one hundred forty million, three hundred twenty-one thousand, fifty-five".