1002004169 has 2 divisors, whose sum is σ = 1002004170. Its totient is φ = 1002004168.

The previous prime is 1002004127. The next prime is 1002004181. The reversal of 1002004169 is 9614002001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554131600 + 447872569 = 23540^2 + 21163^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002004169 - 2¹⁶ = 1001938633 is a prime.

It is a super-2 number, since 2×1002004169² = 2008024709386761122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1002094169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501002084 + 501002085.

It is an arithmetic number, because the mean of its divisors is an integer number (501002085).

Almost surely, 2^1002004169 is an apocalyptic number.

It is an amenable number.

1002004169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002004169 is an equidigital number, since it uses as much as digits as its factorization.

1002004169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1002004169 is about 31654.4494344792. The cubic root of 1002004169 is about 1000.6676105303.

The spelling of 1002004169 in words is "one billion, two million, four thousand, one hundred sixty-nine".