272252009 has 2 divisors, whose sum is σ = 272252010. Its totient is φ = 272252008.

The previous prime is 272251999. The next prime is 272252027. The reversal of 272252009 is 900252272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211848025 + 60403984 = 14555^2 + 7772^2 .

It is a cyclic number.

It is not a de Polignac number, because 272252009 - 2²⁰ = 271203433 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (272252209) by changing a digit.

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 as a sum of consecutive naturals, namely, 136126004 + 136126005.

It is an arithmetic number, because the mean of its divisors is an integer number (136126005).

Almost surely, 2^272252009 is an apocalyptic number.

It is an amenable number.

272252009 is a deficient number, since it is larger than the sum of its proper divisors (1).

272252009 is an equidigital number, since it uses as much as digits as its factorization.

272252009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 272252009 is about 16500.0608786756. The cubic root of 272252009 is about 648.1223993055.

The spelling of 272252009 in words is "two hundred seventy-two million, two hundred fifty-two thousand, nine".