1002423005 has 4 divisors (see below), whose sum is σ = 1202907612. Its totient is φ = 801938400.

The previous prime is 1002422989. The next prime is 1002423017. The reversal of 1002423005 is 5003242001.

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 229916569 + 772506436 = 15163^2 + 27794^2 .

It is not a de Polignac number, because 1002423005 - 2⁴ = 1002422989 is a prime.

It is a Duffinian number.

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, 100242296 + ... + 100242305.

It is an arithmetic number, because the mean of its divisors is an integer number (300726903).

Almost surely, 2^1002423005 is an apocalyptic number.

It is an amenable number.

1002423005 is a deficient number, since it is larger than the sum of its proper divisors (200484607).

1002423005 is an equidigital number, since it uses as much as digits as its factorization.

1002423005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200484606.

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

The square root of 1002423005 is about 31661.0644956862. The cubic root of 1002423005 is about 1000.8070168819.

Adding to 1002423005 its reverse (5003242001), we get a palindrome (6005665006).

The spelling of 1002423005 in words is "one billion, two million, four hundred twenty-three thousand, five".