8135347499 has 4 divisors (see below), whose sum is σ = 8256770664. Its totient is φ = 8013924336.

The previous prime is 8135347483. The next prime is 8135347523. The reversal of 8135347499 is 9947435318.

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 8135347499 - 2⁴ = 8135347483 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 8135347499.

It is not an unprimeable number, because it can be changed into a prime (8135347799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60711482 + ... + 60711615.

It is an arithmetic number, because the mean of its divisors is an integer number (2064192666).

Almost surely, 2^8135347499 is an apocalyptic number.

8135347499 is a deficient number, since it is larger than the sum of its proper divisors (121423165).

8135347499 is a wasteful number, since it uses less digits than its factorization.

8135347499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121423164.

The product of its digits is 3265920, while the sum is 53.

The square root of 8135347499 is about 90196.1612209744. The cubic root of 8135347499 is about 2011.2159419946.

The spelling of 8135347499 in words is "eight billion, one hundred thirty-five million, three hundred forty-seven thousand, four hundred ninety-nine".