6513134423 has 4 divisors (see below), whose sum is σ = 6513328920. Its totient is φ = 6512939928.

The previous prime is 6513134371. The next prime is 6513134471. The reversal of 6513134423 is 3244313156.

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 6513134423 - 2¹⁸ = 6512872279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6513134423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6513134723) 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, 32765 + ... + 118742.

It is an arithmetic number, because the mean of its divisors is an integer number (1628332230).

Almost surely, 2^6513134423 is an apocalyptic number.

6513134423 is a deficient number, since it is larger than the sum of its proper divisors (194497).

6513134423 is a wasteful number, since it uses less digits than its factorization.

6513134423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194496.

The product of its digits is 25920, while the sum is 32.

The square root of 6513134423 is about 80703.9926087923. The cubic root of 6513134423 is about 1867.5117680634.

Adding to 6513134423 its reverse (3244313156), we get a palindrome (9757447579).

The spelling of 6513134423 in words is "six billion, five hundred thirteen million, one hundred thirty-four thousand, four hundred twenty-three".