272508217 has 2 divisors, whose sum is σ = 272508218. Its totient is φ = 272508216.

The previous prime is 272508191. The next prime is 272508221. The reversal of 272508217 is 712805272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144456361 + 128051856 = 12019^2 + 11316^2 .

It is a cyclic number.

It is not a de Polignac number, because 272508217 - 2²⁷ = 138290489 is a prime.

It is not a weakly prime, because it can be changed into another prime (272508287) 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, 136254108 + 136254109.

It is an arithmetic number, because the mean of its divisors is an integer number (136254109).

Almost surely, 2^272508217 is an apocalyptic number.

It is an amenable number.

272508217 is a deficient number, since it is larger than the sum of its proper divisors (1).

272508217 is an equidigital number, since it uses as much as digits as its factorization.

272508217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 272508217 is about 16507.8229030966. The cubic root of 272508217 is about 648.3256449210.

The spelling of 272508217 in words is "two hundred seventy-two million, five hundred eight thousand, two hundred seventeen".