5113243609 has 4 divisors (see below), whose sum is σ = 5183288116. Its totient is φ = 5043199104.

The previous prime is 5113243607. The next prime is 5113243627. The reversal of 5113243609 is 9063423115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9063423115 = 5 ⋅1812684623.

It can be written as a sum of positive squares in 2 ways, for example, as 2425858009 + 2687385600 = 49253^2 + 51840^2 .

It is a cyclic number.

It is not a de Polignac number, because 5113243609 - 2¹ = 5113243607 is a prime.

It is a super-2 number, since 2×5113243609² = 52290520409958689762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5113243607) 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, 35022144 + ... + 35022289.

It is an arithmetic number, because the mean of its divisors is an integer number (1295822029).

Almost surely, 2^5113243609 is an apocalyptic number.

It is an amenable number.

5113243609 is a deficient number, since it is larger than the sum of its proper divisors (70044507).

5113243609 is an equidigital number, since it uses as much as digits as its factorization.

5113243609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70044506.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 5113243609 is about 71506.9479771022. The cubic root of 5113243609 is about 1722.7892827196.

The spelling of 5113243609 in words is "five billion, one hundred thirteen million, two hundred forty-three thousand, six hundred nine".