135499643 has 4 divisors (see below), whose sum is σ = 135631848. Its totient is φ = 135367440.

The previous prime is 135499633. The next prime is 135499709. The reversal of 135499643 is 346994531.

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 135499643 - 2⁴ = 135499627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135499594 and 135499603.

It is not an unprimeable number, because it can be changed into a prime (135499603) 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, 64553 + ... + 66618.

It is an arithmetic number, because the mean of its divisors is an integer number (33907962).

Almost surely, 2^135499643 is an apocalyptic number.

135499643 is a deficient number, since it is larger than the sum of its proper divisors (132205).

135499643 is a wasteful number, since it uses less digits than its factorization.

135499643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132204.

The product of its digits is 349920, while the sum is 44.

The square root of 135499643 is about 11640.4313923497. The cubic root of 135499643 is about 513.6248770696.

The spelling of 135499643 in words is "one hundred thirty-five million, four hundred ninety-nine thousand, six hundred forty-three".