201143868 has 48 divisors (see below), whose sum is σ = 482366976. Its totient is φ = 65197440.

The previous prime is 201143867. The next prime is 201143893. The reversal of 201143868 is 868341102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201143863) 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, 227355 + ... + 228237.

It is an arithmetic number, because the mean of its divisors is an integer number (10049312).

Almost surely, 2^201143868 is an apocalyptic number.

It is an amenable number.

201143868 is an abundant number, since it is smaller than the sum of its proper divisors (281223108).

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

201143868 is a wasteful number, since it uses less digits than its factorization.

201143868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 201143868 is about 14182.5198043225. The cubic root of 201143868 is about 585.9163256533.

The spelling of 201143868 in words is "two hundred one million, one hundred forty-three thousand, eight hundred sixty-eight".