1599040169 has 2 divisors, whose sum is σ = 1599040170. Its totient is φ = 1599040168.

The previous prime is 1599040123. The next prime is 1599040189. The reversal of 1599040169 is 9610409951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1599040144 + 25 = 39988^2 + 5^2 .

It is an emirp because it is prime and its reverse (9610409951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1599040169 - 2⁸ = 1599039913 is a prime.

It is a super-2 number, since 2×1599040169² = 5113858924151097122, 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 (1599040189) 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, 799520084 + 799520085.

It is an arithmetic number, because the mean of its divisors is an integer number (799520085).

Almost surely, 2^1599040169 is an apocalyptic number.

It is an amenable number.

1599040169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1599040169 is an equidigital number, since it uses as much as digits as its factorization.

1599040169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 1599040169 is about 39988.0003125938. Note that the first 3 decimals coincide. The cubic root of 1599040169 is about 1169.3731682626.

The spelling of 1599040169 in words is "one billion, five hundred ninety-nine million, forty thousand, one hundred sixty-nine".