641413271 has 8 divisors (see below), whose sum is σ = 663955920. Its totient is φ = 618899008.

The previous prime is 641413207. The next prime is 641413273. The reversal of 641413271 is 172314146.

It is a happy number.

641413271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 641413271 - 2⁶ = 641413207 is a prime.

It is a super-2 number, since 2×641413271² = 822821968429838882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641413273) 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, 45635 + ... + 58011.

It is an arithmetic number, because the mean of its divisors is an integer number (82994490).

Almost surely, 2^641413271 is an apocalyptic number.

641413271 is a deficient number, since it is larger than the sum of its proper divisors (22542649).

641413271 is a wasteful number, since it uses less digits than its factorization.

641413271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14193.

The product of its digits is 4032, while the sum is 29.

The square root of 641413271 is about 25326.1380988101. The cubic root of 641413271 is about 862.4077430132.

The spelling of 641413271 in words is "six hundred forty-one million, four hundred thirteen thousand, two hundred seventy-one".