1140728713 has 4 divisors (see below), whose sum is σ = 1207830420. Its totient is φ = 1073627008.

The previous prime is 1140728711. The next prime is 1140728761. The reversal of 1140728713 is 3178270411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3178270411 = 17 ⋅186957083.

It can be written as a sum of positive squares in 2 ways, for example, as 862773129 + 277955584 = 29373^2 + 16672^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140728713 - 2¹ = 1140728711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140728711) 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, 33550828 + ... + 33550861.

It is an arithmetic number, because the mean of its divisors is an integer number (301957605).

Almost surely, 2^1140728713 is an apocalyptic number.

It is an amenable number.

1140728713 is a deficient number, since it is larger than the sum of its proper divisors (67101707).

1140728713 is an equidigital number, since it uses as much as digits as its factorization.

1140728713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67101706.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 1140728713 is about 33774.6756165030. The cubic root of 1140728713 is about 1044.8664658474.

The spelling of 1140728713 in words is "one billion, one hundred forty million, seven hundred twenty-eight thousand, seven hundred thirteen".