272505641 has 2 divisors, whose sum is σ = 272505642. Its totient is φ = 272505640.

The previous prime is 272505637. The next prime is 272505647. The reversal of 272505641 is 146505272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249513616 + 22992025 = 15796^2 + 4795^2 .

It is a cyclic number.

It is not a de Polignac number, because 272505641 - 2² = 272505637 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 272505598 and 272505607.

It is not a weakly prime, because it can be changed into another prime (272505647) 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, 136252820 + 136252821.

It is an arithmetic number, because the mean of its divisors is an integer number (136252821).

Almost surely, 2^272505641 is an apocalyptic number.

It is an amenable number.

272505641 is a deficient number, since it is larger than the sum of its proper divisors (1).

272505641 is an equidigital number, since it uses as much as digits as its factorization.

272505641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 272505641 is about 16507.7448792983. The cubic root of 272505641 is about 648.3236020565.

The spelling of 272505641 in words is "two hundred seventy-two million, five hundred five thousand, six hundred forty-one".