2005047169 has 4 divisors (see below), whose sum is σ = 2007746496. Its totient is φ = 2002347844.

The previous prime is 2005047151. The next prime is 2005047173. The reversal of 2005047169 is 9617405002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2005047169 - 2⁷ = 2005047041 is a prime.

It is a super-2 number, since 2×2005047169² = 8040428299829829122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005047179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348549 + ... + 1350034.

It is an arithmetic number, because the mean of its divisors is an integer number (501936624).

Almost surely, 2^2005047169 is an apocalyptic number.

It is an amenable number.

2005047169 is a deficient number, since it is larger than the sum of its proper divisors (2699327).

2005047169 is an equidigital number, since it uses as much as digits as its factorization.

2005047169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699326.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 2005047169 is about 44777.7530588573. The cubic root of 2005047169 is about 1260.9799986891.

The spelling of 2005047169 in words is "two billion, five million, forty-seven thousand, one hundred sixty-nine".