1140040013 has 4 divisors (see below), whose sum is σ = 1302902880. Its totient is φ = 977177148.

The previous prime is 1140039997. The next prime is 1140040049. The reversal of 1140040013 is 3100400411.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1140040013 - 2⁴ = 1140039997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140040013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140040513) 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, 81431423 + ... + 81431436.

It is an arithmetic number, because the mean of its divisors is an integer number (325725720).

Almost surely, 2^1140040013 is an apocalyptic number.

It is an amenable number.

1140040013 is a deficient number, since it is larger than the sum of its proper divisors (162862867).

1140040013 is an equidigital number, since it uses as much as digits as its factorization.

1140040013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162862866.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1140040013 is about 33764.4785684601. The cubic root of 1140040013 is about 1044.6561487078.

Adding to 1140040013 its reverse (3100400411), we get a palindrome (4240440424).

The spelling of 1140040013 in words is "one billion, one hundred forty million, forty thousand, thirteen".