401318171 has 4 divisors (see below), whose sum is σ = 422440200. Its totient is φ = 380196144.

The previous prime is 401318131. The next prime is 401318189. The reversal of 401318171 is 171813104.

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-401318171 is a prime.

It is a super-2 number, since 2×401318171² = 322112548749570482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401318171.

It is not an unprimeable number, because it can be changed into a prime (401318111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10560986 + ... + 10561023.

It is an arithmetic number, because the mean of its divisors is an integer number (105610050).

Almost surely, 2^401318171 is an apocalyptic number.

401318171 is a deficient number, since it is larger than the sum of its proper divisors (21122029).

401318171 is a wasteful number, since it uses less digits than its factorization.

401318171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21122028.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 401318171 is about 20032.9271700368. The cubic root of 401318171 is about 737.6147761996.

The spelling of 401318171 in words is "four hundred one million, three hundred eighteen thousand, one hundred seventy-one".