2045002 has 4 divisors (see below), whose sum is σ = 3067506. Its totient is φ = 1022500.

The previous prime is 2044979. The next prime is 2045009. The reversal of 2045002 is 2005402.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1121481 + 923521 = 1059^2 + 961^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2045009) 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 as a sum of consecutive naturals, namely, 511249 + ... + 511252.

2^2045002 is an apocalyptic number.

2045002 is a deficient number, since it is larger than the sum of its proper divisors (1022504).

2045002 is a wasteful number, since it uses less digits than its factorization.

2045002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022503.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 2045002 is about 1430.0356638909. The cubic root of 2045002 is about 126.9300873809.

The spelling of 2045002 in words is "two million, forty-five thousand, two".