2016001 has 12 divisors (see below), whose sum is σ = 2225280. Its totient is φ = 1825200.

The previous prime is 2015999. The next prime is 2016017. The reversal of 2016001 is 1006102.

It is not a de Polignac number, because 2016001 - 2¹ = 2015999 is a prime.

It is a Duffinian number.

2016001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2016031) 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, 13276 + ... + 13426.

It is an arithmetic number, because the mean of its divisors is an integer number (185440).

2^2016001 is an apocalyptic number.

It is an amenable number.

2016001 is a deficient number, since it is larger than the sum of its proper divisors (209279).

2016001 is a wasteful number, since it uses less digits than its factorization.

2016001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2016001 is about 1419.8595000915. The cubic root of 2016001 is about 126.3272128406.

It can be divided in two parts, 201600 and 1, that added together give a square (201601 = 449²).

The spelling of 2016001 in words is "two million, sixteen thousand, one".