1002532045 has 16 divisors (see below), whose sum is σ = 1227383280. Its totient is φ = 785956864.

The previous prime is 1002532039. The next prime is 1002532081. The reversal of 1002532045 is 5402352001.

It can be written as a sum of positive squares in 8 ways, for example, as 454457124 + 548074921 = 21318^2 + 23411^2 .

It is not a de Polignac number, because 1002532045 - 2²⁵ = 968977613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40317 + ... + 60253.

It is an arithmetic number, because the mean of its divisors is an integer number (76711455).

Almost surely, 2^1002532045 is an apocalyptic number.

It is an amenable number.

1002532045 is a deficient number, since it is larger than the sum of its proper divisors (224851235).

1002532045 is a wasteful number, since it uses less digits than its factorization.

1002532045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20144.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1002532045 is about 31662.7864377095. The cubic root of 1002532045 is about 1000.8433036391.

Adding to 1002532045 its reverse (5402352001), we get a palindrome (6404884046).

The spelling of 1002532045 in words is "one billion, two million, five hundred thirty-two thousand, forty-five".