135351568 has 60 divisors (see below), whose sum is σ = 290786944. Its totient is φ = 60984000.

The previous prime is 135351547. The next prime is 135351581. The reversal of 135351568 is 865153531.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292105 + ... + 292567.

Almost surely, 2^135351568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135351568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145393472).

135351568 is an abundant number, since it is smaller than the sum of its proper divisors (155435376).

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

135351568 is a wasteful number, since it uses less digits than its factorization.

135351568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 627 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

The square root of 135351568 is about 11634.0692794912. The cubic root of 135351568 is about 513.4377112013.

The spelling of 135351568 in words is "one hundred thirty-five million, three hundred fifty-one thousand, five hundred sixty-eight".