201151271 has 8 divisors (see below), whose sum is σ = 215734320. Its totient is φ = 186967872.

The previous prime is 201151267. The next prime is 201151319. The reversal of 201151271 is 172151102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201151271 - 2² = 201151267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201151231) 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, 98870 + ... + 100883.

It is an arithmetic number, because the mean of its divisors is an integer number (26966790).

Almost surely, 2^201151271 is an apocalyptic number.

201151271 is a deficient number, since it is larger than the sum of its proper divisors (14583049).

201151271 is a wasteful number, since it uses less digits than its factorization.

201151271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199825.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 201151271 is about 14182.7807922142. The cubic root of 201151271 is about 585.9235136848.

The spelling of 201151271 in words is "two hundred one million, one hundred fifty-one thousand, two hundred seventy-one".