135542 has 16 divisors (see below), whose sum is σ = 227664. Its totient is φ = 60000.

The previous prime is 135533. The next prime is 135559. The reversal of 135542 is 245531.

It is a d-powerful number, because it can be written as 1 + 3⁵ + 5 + 5³ + 4⁶ + 2¹⁷ .

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292 + ... + 1392.

It is an arithmetic number, because the mean of its divisors is an integer number (14229).

2¹³⁵⁵⁴² is an apocalyptic number.

135542 is a deficient number, since it is larger than the sum of its proper divisors (92122).

135542 is a wasteful number, since it uses less digits than its factorization.

135542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175.

The product of its digits is 600, while the sum is 20.

The square root of 135542 is about 368.1602911776. The cubic root of 135542 is about 51.3678390968.

It can be divided in two parts, 13 and 5542, that added together give a palindrome (5555).

The spelling of 135542 in words is "one hundred thirty-five thousand, five hundred forty-two".