5128135319 has 4 divisors (see below), whose sum is σ = 5136783696. Its totient is φ = 5119486944.

The previous prime is 5128135307. The next prime is 5128135333. The reversal of 5128135319 is 9135318215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5128135319 - 2⁸ = 5128135063 is a prime.

It is a super-2 number, since 2×5128135319² = 52595543699950463522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128135399) 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, 4323299 + ... + 4324484.

It is an arithmetic number, because the mean of its divisors is an integer number (1284195924).

Almost surely, 2^5128135319 is an apocalyptic number.

5128135319 is a deficient number, since it is larger than the sum of its proper divisors (8648377).

5128135319 is an equidigital number, since it uses as much as digits as its factorization.

5128135319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8648376.

The product of its digits is 32400, while the sum is 38.

The square root of 5128135319 is about 71610.9999860357. Note that the first 4 decimals coincide. The cubic root of 5128135319 is about 1724.4601342438.

The spelling of 5128135319 in words is "five billion, one hundred twenty-eight million, one hundred thirty-five thousand, three hundred nineteen".