1140044513 has 4 divisors (see below), whose sum is σ = 1141094400. Its totient is φ = 1138994628.

The previous prime is 1140044489. The next prime is 1140044617. The reversal of 1140044513 is 3154400411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3154400411 = 2237 ⋅1410103.

It is a cyclic number.

It is not a de Polignac number, because 1140044513 - 2²⁴ = 1123267297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140040513) 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 3 ways as a sum of consecutive naturals, for example, 523313 + ... + 525486.

It is an arithmetic number, because the mean of its divisors is an integer number (285273600).

Almost surely, 2^1140044513 is an apocalyptic number.

It is an amenable number.

1140044513 is a deficient number, since it is larger than the sum of its proper divisors (1049887).

1140044513 is a wasteful number, since it uses less digits than its factorization.

1140044513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049886.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1140044513 is about 33764.5452064736. The cubic root of 1140044513 is about 1044.6575232053.

Adding to 1140044513 its reverse (3154400411), we get a palindrome (4294444924).

The spelling of 1140044513 in words is "one billion, one hundred forty million, forty-four thousand, five hundred thirteen".