401171 has 4 divisors (see below), whose sum is σ = 414144. Its totient is φ = 388200.

The previous prime is 401161. The next prime is 401173. The reversal of 401171 is 171104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6440 + ... + 6501.

It is an arithmetic number, because the mean of its divisors is an integer number (103536).

2⁴⁰¹¹⁷¹ is an apocalyptic number.

401171 is a deficient number, since it is larger than the sum of its proper divisors (12973).

401171 is a wasteful number, since it uses less digits than its factorization.

401171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12972.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 401171 is about 633.3806122704. The cubic root of 401171 is about 73.7524599390.

Adding to 401171 its reverse (171104), we get a palindrome (572275).

The spelling of 401171 in words is "four hundred one thousand, one hundred seventy-one", and thus it is an iban number.