401181 has 8 divisors (see below), whose sum is σ = 583584. Its totient is φ = 243120.

The previous prime is 401179. The next prime is 401201. The reversal of 401181 is 181104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 401181 - 2¹ = 401179 is a prime.

It is a super-2 number, since 2×401181² = 321892389522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401181.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 401181.

It is not an unprimeable number, because it can be changed into a prime (401101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6046 + ... + 6111.

It is an arithmetic number, because the mean of its divisors is an integer number (72948).

2⁴⁰¹¹⁸¹ is an apocalyptic number.

It is an amenable number.

401181 is a deficient number, since it is larger than the sum of its proper divisors (182403).

401181 is a wasteful number, since it uses less digits than its factorization.

401181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12171.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 401181 is about 633.3885063687. The cubic root of 401181 is about 73.7530727438.

Adding to 401181 its reverse (181104), we get a palindrome (582285).

It can be divided in two parts, 40 and 1181, that added together give a palindrome (1221).

The spelling of 401181 in words is "four hundred one thousand, one hundred eighty-one".