201140856 has 96 divisors (see below), whose sum is σ = 624555360. Its totient is φ = 57286656.

The previous prime is 201140837. The next prime is 201140869. The reversal of 201140856 is 658041102.

201140856 is a `hidden beast` number, since 201 + 1 + 408 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298536 + ... + 299208.

It is an arithmetic number, because the mean of its divisors is an integer number (6505785).

Almost surely, 2^201140856 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 201140856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312277680).

201140856 is an abundant number, since it is smaller than the sum of its proper divisors (423414504).

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

201140856 is a wasteful number, since it uses less digits than its factorization.

201140856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285 (or 1278 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 201140856 is about 14182.4136168707. The cubic root of 201140856 is about 585.9134010654.

Adding to 201140856 its reverse (658041102), we get a palindrome (859181958).

The spelling of 201140856 in words is "two hundred one million, one hundred forty thousand, eight hundred fifty-six".