135568620 has 192 divisors, whose sum is σ = 476582400. Its totient is φ = 31691520.

The previous prime is 135568619. The next prime is 135568681. The reversal of 135568620 is 26865531.

135568620 is a `hidden beast` number, since 1 + 3 + 556 + 86 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 171867 + ... + 172653.

It is an arithmetic number, because the mean of its divisors is an integer number (2482200).

Almost surely, 2^135568620 is an apocalyptic number.

135568620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135568620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238291200).

135568620 is an abundant number, since it is smaller than the sum of its proper divisors (341013780).

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

135568620 is a wasteful number, since it uses less digits than its factorization.

135568620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 135568620 is about 11643.3938351324. The cubic root of 135568620 is about 513.7120170118.

The spelling of 135568620 in words is "one hundred thirty-five million, five hundred sixty-eight thousand, six hundred twenty".