1002452005 has 32 divisors (see below), whose sum is σ = 1298965248. Its totient is φ = 739968000.

The previous prime is 1002451999. The next prime is 1002452023. The reversal of 1002452005 is 5002542001.

It is not a de Polignac number, because 1002452005 - 2¹¹ = 1002449957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1064835 + ... + 1065775.

It is an arithmetic number, because the mean of its divisors is an integer number (40592664).

Almost surely, 2^1002452005 is an apocalyptic number.

It is an amenable number.

1002452005 is a deficient number, since it is larger than the sum of its proper divisors (296513243).

1002452005 is a wasteful number, since it uses less digits than its factorization.

1002452005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1002452005 is about 31661.5224681316. The cubic root of 1002452005 is about 1000.8166678720.

Adding to 1002452005 its reverse (5002542001), we get a palindrome (6004994006).

It can be divided in two parts, 100245 and 2005, that multiplied together give a triangular number (200991225 = T₂₀₀₄₉).

The spelling of 1002452005 in words is "one billion, two million, four hundred fifty-two thousand, five".