1206001 has 4 divisors (see below), whose sum is σ = 1218532. Its totient is φ = 1193472.

The previous prime is 1205999. The next prime is 1206013. The reversal of 1206001 is 1006021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 331776 + 874225 = 576^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 1206001 - 2¹ = 1205999 is a prime.

It is a Duffinian number.

1206001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1206061) 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 3 ways as a sum of consecutive naturals, for example, 6120 + ... + 6313.

It is an arithmetic number, because the mean of its divisors is an integer number (304633).

2^1206001 is an apocalyptic number.

It is an amenable number.

1206001 is a deficient number, since it is larger than the sum of its proper divisors (12531).

1206001 is an equidigital number, since it uses as much as digits as its factorization.

1206001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12530.

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

The square root of 1206001 is about 1098.1807683619. The cubic root of 1206001 is about 106.4427017344.

The spelling of 1206001 in words is "one million, two hundred six thousand, one".