2001061 has 4 divisors (see below), whose sum is σ = 2106400. Its totient is φ = 1895724.

The previous prime is 2001049. The next prime is 2001067. The reversal of 2001061 is 1601002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2001061 - 2¹⁵ = 1968293 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52641 + ... + 52678.

It is an arithmetic number, because the mean of its divisors is an integer number (526600).

2^2001061 is an apocalyptic number.

It is an amenable number.

2001061 is a deficient number, since it is larger than the sum of its proper divisors (105339).

2001061 is a wasteful number, since it uses less digits than its factorization.

2001061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105338.

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

The square root of 2001061 is about 1414.5886327834. The cubic root of 2001061 is about 126.0143806548.

Adding to 2001061 its reverse (1601002), we get a palindrome (3602063).

The spelling of 2001061 in words is "two million, one thousand, sixty-one".