135685142 has 32 divisors (see below), whose sum is σ = 225720000. Its totient is φ = 60939648.

The previous prime is 135685133. The next prime is 135685159. The reversal of 135685142 is 241586531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47984 + ... + 50732.

It is an arithmetic number, because the mean of its divisors is an integer number (7053750).

Almost surely, 2^135685142 is an apocalyptic number.

135685142 is a deficient number, since it is larger than the sum of its proper divisors (90034858).

135685142 is a wasteful number, since it uses less digits than its factorization.

135685142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840.

The product of its digits is 28800, while the sum is 35.

The square root of 135685142 is about 11648.3965420138. The cubic root of 135685142 is about 513.8591543316.

The spelling of 135685142 in words is "one hundred thirty-five million, six hundred eighty-five thousand, one hundred forty-two".