136529 has 4 divisors (see below), whose sum is σ = 137280. Its totient is φ = 135780.

The previous prime is 136523. The next prime is 136531. The reversal of 136529 is 925631.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 925631 = 7 ⋅132233.

It is a cyclic number.

It is not a de Polignac number, because 136529 - 2⁸ = 136273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 136498 and 136507.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136529.

It is not an unprimeable number, because it can be changed into a prime (136523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92 + ... + 530.

It is an arithmetic number, because the mean of its divisors is an integer number (34320).

2¹³⁶⁵²⁹ is an apocalyptic number.

It is an amenable number.

136529 is a deficient number, since it is larger than the sum of its proper divisors (751).

136529 is an equidigital number, since it uses as much as digits as its factorization.

136529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750.

The product of its digits is 1620, while the sum is 26.

The square root of 136529 is about 369.4983085212. The cubic root of 136529 is about 51.4922224092.

Subtracting from 136529 its sum of digits (26), we obtain a triangular number (136503 = T₅₂₂).

The spelling of 136529 in words is "one hundred thirty-six thousand, five hundred twenty-nine".