271071681 has 16 divisors (see below), whose sum is σ = 388084608. Its totient is φ = 167686400.

The previous prime is 271071659. The next prime is 271071737. The reversal of 271071681 is 186170172.

It is a cyclic number.

It is not a de Polignac number, because 271071681 - 2¹⁴ = 271055297 is a prime.

It is a super-2 number, since 2×271071681² = 146959712480331522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (271071601) 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, 33810 + ... + 41051.

It is an arithmetic number, because the mean of its divisors is an integer number (24255288).

Almost surely, 2^271071681 is an apocalyptic number.

It is an amenable number.

271071681 is a deficient number, since it is larger than the sum of its proper divisors (117012927).

271071681 is a wasteful number, since it uses less digits than its factorization.

271071681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74952.

The product of its (nonzero) digits is 4704, while the sum is 33.

The square root of 271071681 is about 16464.2546445322. The cubic root of 271071681 is about 647.1844139227.

The spelling of 271071681 in words is "two hundred seventy-one million, seventy-one thousand, six hundred eighty-one".