2006045 has 4 divisors (see below), whose sum is σ = 2407260. Its totient is φ = 1604832.

The previous prime is 2006033. The next prime is 2006071. The reversal of 2006045 is 5406002.

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 994009 + 1012036 = 997^2 + 1006^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006045 - 2⁶ = 2005981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200600 + ... + 200609.

It is an arithmetic number, because the mean of its divisors is an integer number (601815).

2^2006045 is an apocalyptic number.

It is an amenable number.

2006045 is a deficient number, since it is larger than the sum of its proper divisors (401215).

2006045 is an equidigital number, since it uses as much as digits as its factorization.

2006045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401214.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2006045 is about 1416.3491801106. The cubic root of 2006045 is about 126.1189143605.

The spelling of 2006045 in words is "two million, six thousand, forty-five".