1116271613 has 4 divisors (see below), whose sum is σ = 1116342240. Its totient is φ = 1116200988.

The previous prime is 1116271589. The next prime is 1116271633. The reversal of 1116271613 is 3161726111.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3161726111 = 41 ⋅77115271.

It is a cyclic number.

It is not a de Polignac number, because 1116271613 - 2⁶ = 1116271549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116271633) 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, 506 + ... + 47252.

It is an arithmetic number, because the mean of its divisors is an integer number (279085560).

Almost surely, 2^1116271613 is an apocalyptic number.

It is an amenable number.

1116271613 is a deficient number, since it is larger than the sum of its proper divisors (70627).

1116271613 is an equidigital number, since it uses as much as digits as its factorization.

1116271613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70626.

The product of its digits is 1512, while the sum is 29.

The square root of 1116271613 is about 33410.6511909002. The cubic root of 1116271613 is about 1037.3451805177.

Adding to 1116271613 its reverse (3161726111), we get a palindrome (4277997724).

The spelling of 1116271613 in words is "one billion, one hundred sixteen million, two hundred seventy-one thousand, six hundred thirteen".