2005245 has 24 divisors (see below), whose sum is σ = 3792672. Its totient is φ = 972000.

The previous prime is 2005231. The next prime is 2005249. The reversal of 2005245 is 5425002.

It is not a de Polignac number, because 2005245 - 2⁴ = 2005229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1531 + ... + 2520.

It is an arithmetic number, because the mean of its divisors is an integer number (158028).

2^2005245 is an apocalyptic number.

It is an amenable number.

2005245 is a deficient number, since it is larger than the sum of its proper divisors (1787427).

2005245 is a wasteful number, since it uses less digits than its factorization.

2005245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073 (or 4070 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2005245 is about 1416.0667357155. The cubic root of 2005245 is about 126.1021469489.

It can be divided in two parts, 200 and 5245, that added together give a palindrome (5445).

The spelling of 2005245 in words is "two million, five thousand, two hundred forty-five".