401121 has 12 divisors (see below), whose sum is σ = 662272. Its totient is φ = 229176.

The previous prime is 401119. The next prime is 401161. The reversal of 401121 is 121104.

It is a happy number.

It is not a de Polignac number, because 401121 - 2¹ = 401119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3121 + ... + 3246.

2⁴⁰¹¹²¹ is an apocalyptic number.

It is an amenable number.

401121 is a deficient number, since it is larger than the sum of its proper divisors (261151).

401121 is a wasteful number, since it uses less digits than its factorization.

401121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6380 (or 6377 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 401121 is about 633.3411403028. The cubic root of 401121 is about 73.7493957625.

Adding to 401121 its reverse (121104), we get a palindrome (522225).

The spelling of 401121 in words is "four hundred one thousand, one hundred twenty-one", and thus it is an iban number.