641141271 has 16 divisors (see below), whose sum is σ = 950245600. Its totient is φ = 427244544.

The previous prime is 641141239. The next prime is 641141273. The reversal of 641141271 is 172141146.

641141271 is a `hidden beast` number, since 641 + 1 + 4 + 12 + 7 + 1 = 666.

It is not a de Polignac number, because 641141271 - 2⁵ = 641141239 is a prime.

It is a super-2 number, since 2×641141271² = 822124258758990882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641141273) 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, 94935 + ... + 101463.

It is an arithmetic number, because the mean of its divisors is an integer number (59390350).

Almost surely, 2^641141271 is an apocalyptic number.

641141271 is a deficient number, since it is larger than the sum of its proper divisors (309104329).

641141271 is a wasteful number, since it uses less digits than its factorization.

641141271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10175 (or 10169 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 641141271 is about 25320.7675831520. The cubic root of 641141271 is about 862.2858205425.

The spelling of 641141271 in words is "six hundred forty-one million, one hundred forty-one thousand, two hundred seventy-one".