135499813 has 8 divisors (see below), whose sum is σ = 138310560. Its totient is φ = 132706320.

The previous prime is 135499807. The next prime is 135499817. The reversal of 135499813 is 318994531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135499813 - 2²⁵ = 101945381 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 135499813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135499817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12198 + ... + 20488.

It is an arithmetic number, because the mean of its divisors is an integer number (17288820).

Almost surely, 2^135499813 is an apocalyptic number.

It is an amenable number.

135499813 is a deficient number, since it is larger than the sum of its proper divisors (2810747).

135499813 is an equidigital number, since it uses as much as digits as its factorization.

135499813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8627.

The product of its digits is 116640, while the sum is 43.

The square root of 135499813 is about 11640.4386944823. The cubic root of 135499813 is about 513.6250918702.

The spelling of 135499813 in words is "one hundred thirty-five million, four hundred ninety-nine thousand, eight hundred thirteen".