201281568 has 48 divisors (see below), whose sum is σ = 537334560. Its totient is φ = 65954816.

The previous prime is 201281539. The next prime is 201281569. The reversal of 201281568 is 865182102.

201281568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (201281569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12105 + ... + 23432.

It is an arithmetic number, because the mean of its divisors is an integer number (11194470).

Almost surely, 2^201281568 is an apocalyptic number.

It is an amenable number.

201281568 is an abundant number, since it is smaller than the sum of its proper divisors (336052992).

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

201281568 is a wasteful number, since it uses less digits than its factorization.

201281568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35609 (or 35601 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 201281568 is about 14187.3735412866. The cubic root of 201281568 is about 586.0499982578.

The spelling of 201281568 in words is "two hundred one million, two hundred eighty-one thousand, five hundred sixty-eight".