135842680 has 64 divisors (see below), whose sum is σ = 312157440. Its totient is φ = 53194752.

The previous prime is 135842617. The next prime is 135842687. The reversal of 135842680 is 86248531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135842687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 609049 + ... + 609271.

It is an arithmetic number, because the mean of its divisors is an integer number (4877460).

Almost surely, 2^135842680 is an apocalyptic number.

135842680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135842680 is an abundant number, since it is smaller than the sum of its proper divisors (176314760).

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

135842680 is a wasteful number, since it uses less digits than its factorization.

135842680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 135842680 is about 11655.1567986021. The cubic root of 135842680 is about 514.0579504375.

The spelling of 135842680 in words is "one hundred thirty-five million, eight hundred forty-two thousand, six hundred eighty".