135708 has 24 divisors (see below), whose sum is σ = 325248. Its totient is φ = 44016.

The previous prime is 135701. The next prime is 135719. The reversal of 135708 is 807531.

It is a super-2 number, since 2×135708² = 36833322528, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135701) by changing a digit.

135708 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385 + ... + 647.

It is an arithmetic number, because the mean of its divisors is an integer number (13552).

2¹³⁵⁷⁰⁸ is an apocalyptic number.

It is an amenable number.

135708 is an abundant number, since it is smaller than the sum of its proper divisors (189540).

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

135708 is a wasteful number, since it uses less digits than its factorization.

135708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 135708 is about 368.3856674736. The cubic root of 135708 is about 51.3888008223.

The spelling of 135708 in words is "one hundred thirty-five thousand, seven hundred eight".