135547 has 4 divisors (see below), whose sum is σ = 137160. Its totient is φ = 133936.

The previous prime is 135533. The next prime is 135559. The reversal of 135547 is 745531.

135547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 135547 - 2¹¹ = 133499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135347) 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, 673 + ... + 850.

It is an arithmetic number, because the mean of its divisors is an integer number (34290).

2¹³⁵⁵⁴⁷ is an apocalyptic number.

135547 is a deficient number, since it is larger than the sum of its proper divisors (1613).

135547 is an equidigital number, since it uses as much as digits as its factorization.

135547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612.

The product of its digits is 2100, while the sum is 25.

The square root of 135547 is about 368.1670816355. The cubic root of 135547 is about 51.3684707240.

The spelling of 135547 in words is "one hundred thirty-five thousand, five hundred forty-seven".