135683730 has 96 divisors (see below), whose sum is σ = 434214144. Its totient is φ = 28626048.

The previous prime is 135683711. The next prime is 135683813. The reversal of 135683730 is 37386531.

It is a super-3 number, since 3×135683730³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94 + ... + 16473.

It is an arithmetic number, because the mean of its divisors is an integer number (4523064).

Almost surely, 2^135683730 is an apocalyptic number.

135683730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 135683730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217107072).

135683730 is an abundant number, since it is smaller than the sum of its proper divisors (298530414).

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

135683730 is a wasteful number, since it uses less digits than its factorization.

135683730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16600 (or 16597 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 135683730 is about 11648.3359326558. The cubic root of 135683730 is about 513.8573718430.

It can be divided in two parts, 135 and 683730, that added together give a triangular number (683865 = T₁₁₆₉).

The spelling of 135683730 in words is "one hundred thirty-five million, six hundred eighty-three thousand, seven hundred thirty".