272109449 has 2 divisors, whose sum is σ = 272109450. Its totient is φ = 272109448.

The previous prime is 272109403. The next prime is 272109457. The reversal of 272109449 is 944901272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260241424 + 11868025 = 16132^2 + 3445^2 .

It is a cyclic number.

It is not a de Polignac number, because 272109449 - 2⁸ = 272109193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (272109499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136054724 + 136054725.

It is an arithmetic number, because the mean of its divisors is an integer number (136054725).

Almost surely, 2^272109449 is an apocalyptic number.

It is an amenable number.

272109449 is a deficient number, since it is larger than the sum of its proper divisors (1).

272109449 is an equidigital number, since it uses as much as digits as its factorization.

272109449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 272109449 is about 16495.7403289455. The cubic root of 272109449 is about 648.0092535703.

The spelling of 272109449 in words is "two hundred seventy-two million, one hundred nine thousand, four hundred forty-nine".