7126313305 has 4 divisors (see below), whose sum is σ = 8551575972. Its totient is φ = 5701050640.

The previous prime is 7126313291. The next prime is 7126313309. The reversal of 7126313305 is 5033136217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5033136217 = 5099 ⋅987083.

It can be written as a sum of positive squares in 2 ways, for example, as 2228972944 + 4897340361 = 47212^2 + 69981^2 .

It is not a de Polignac number, because 7126313305 - 2⁹ = 7126312793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7126313309) 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, 712631326 + ... + 712631335.

It is an arithmetic number, because the mean of its divisors is an integer number (2137893993).

Almost surely, 2^7126313305 is an apocalyptic number.

It is an amenable number.

7126313305 is a deficient number, since it is larger than the sum of its proper divisors (1425262667).

7126313305 is a wasteful number, since it uses less digits than its factorization.

7126313305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425262666.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 7126313305 is about 84417.4940696536. The cubic root of 7126313305 is about 1924.3687865804.

The spelling of 7126313305 in words is "seven billion, one hundred twenty-six million, three hundred thirteen thousand, three hundred five".