272805361 has 2 divisors, whose sum is σ = 272805362. Its totient is φ = 272805360.

The previous prime is 272805353. The next prime is 272805371. The reversal of 272805361 is 163508272.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266832225 + 5973136 = 16335^2 + 2444^2 .

It is a cyclic number.

It is not a de Polignac number, because 272805361 - 2³ = 272805353 is a prime.

It is not a weakly prime, because it can be changed into another prime (272805371) 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, 136402680 + 136402681.

It is an arithmetic number, because the mean of its divisors is an integer number (136402681).

Almost surely, 2^272805361 is an apocalyptic number.

It is an amenable number.

272805361 is a deficient number, since it is larger than the sum of its proper divisors (1).

272805361 is an equidigital number, since it uses as much as digits as its factorization.

272805361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 272805361 is about 16516.8205475509. The cubic root of 272805361 is about 648.5612049092.

The spelling of 272805361 in words is "two hundred seventy-two million, eight hundred five thousand, three hundred sixty-one".