401163271 has 2 divisors, whose sum is σ = 401163272. Its totient is φ = 401163270.

The previous prime is 401163247. The next prime is 401163353. The reversal of 401163271 is 172361104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401163271 - 2⁵ = 401163239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401163071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200581635 + 200581636.

It is an arithmetic number, because the mean of its divisors is an integer number (200581636).

Almost surely, 2^401163271 is an apocalyptic number.

401163271 is a deficient number, since it is larger than the sum of its proper divisors (1).

401163271 is an equidigital number, since it uses as much as digits as its factorization.

401163271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 401163271 is about 20029.0606619482. The cubic root of 401163271 is about 737.5198629525.

The spelling of 401163271 in words is "four hundred one million, one hundred sixty-three thousand, two hundred seventy-one".