135942 has 16 divisors (see below), whose sum is σ = 275520. Its totient is φ = 44712.

The previous prime is 135937. The next prime is 135977. The reversal of 135942 is 249531.

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, 753 + ... + 915.

It is an arithmetic number, because the mean of its divisors is an integer number (17220).

2¹³⁵⁹⁴² is an apocalyptic number.

135942 is an abundant number, since it is smaller than the sum of its proper divisors (139578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135942 is a wasteful number, since it uses less digits than its factorization.

135942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307.

The product of its digits is 1080, while the sum is 24.

The square root of 135942 is about 368.7031326148. The cubic root of 135942 is about 51.4183202672.

The spelling of 135942 in words is "one hundred thirty-five thousand, nine hundred forty-two".