401065 has 12 divisors (see below), whose sum is σ = 560196. Its totient is φ = 274848.

The previous prime is 401057. The next prime is 401069. The reversal of 401065 is 560104.

It can be written as a sum of positive squares in 2 ways, for example, as 63504 + 337561 = 252^2 + 581^2 .

It is not a de Polignac number, because 401065 - 2³ = 401057 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 401065.

It is not an unprimeable number, because it can be changed into a prime (401069) 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, 574 + ... + 1063.

It is an arithmetic number, because the mean of its divisors is an integer number (46683).

2⁴⁰¹⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

401065 is a deficient number, since it is larger than the sum of its proper divisors (159131).

401065 is a wasteful number, since it uses less digits than its factorization.

401065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 401065 is about 633.2969287783. The cubic root of 401065 is about 73.7459635826.

Adding to 401065 its reverse (560104), we get a palindrome (961169).

The spelling of 401065 in words is "four hundred one thousand, sixty-five".