201271887 has 12 divisors (see below), whose sum is σ = 290862000. Its totient is φ = 134118528.

The previous prime is 201271867. The next prime is 201271901. The reversal of 201271887 is 788172102.

It is a happy number.

It is not a de Polignac number, because 201271887 - 2¹⁰ = 201270863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201271817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23263 + ... + 30719.

It is an arithmetic number, because the mean of its divisors is an integer number (24238500).

Almost surely, 2^201271887 is an apocalyptic number.

201271887 is a deficient number, since it is larger than the sum of its proper divisors (89590113).

201271887 is a wasteful number, since it uses less digits than its factorization.

201271887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10462 (or 10459 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 201271887 is about 14187.0323535262. The cubic root of 201271887 is about 586.0406023966.

The spelling of 201271887 in words is "two hundred one million, two hundred seventy-one thousand, eight hundred eighty-seven".