135843529 has 4 divisors (see below), whose sum is σ = 135976320. Its totient is φ = 135710740.

The previous prime is 135843503. The next prime is 135843541. The reversal of 135843529 is 925348531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 925348531 = 4007 ⋅230933.

It is a cyclic number.

It is not a de Polignac number, because 135843529 - 2¹⁹ = 135319241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135843491 and 135843500.

It is not an unprimeable number, because it can be changed into a prime (135843229) 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, 64849 + ... + 66910.

It is an arithmetic number, because the mean of its divisors is an integer number (33994080).

Almost surely, 2^135843529 is an apocalyptic number.

It is an amenable number.

135843529 is a deficient number, since it is larger than the sum of its proper divisors (132791).

135843529 is a wasteful number, since it uses less digits than its factorization.

135843529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132790.

The product of its digits is 129600, while the sum is 40.

The square root of 135843529 is about 11655.1932201916. The cubic root of 135843529 is about 514.0590213682.

The spelling of 135843529 in words is "one hundred thirty-five million, eight hundred forty-three thousand, five hundred twenty-nine".