272948681 has 2 divisors, whose sum is σ = 272948682. Its totient is φ = 272948680.

The previous prime is 272948677. The next prime is 272948701. The reversal of 272948681 is 186849272.

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., 217297081 + 55651600 = 14741^2 + 7460^2 .

It is a cyclic number.

It is not a de Polignac number, because 272948681 - 2² = 272948677 is a prime.

It is a super-2 number, since 2×272948681² = 149001964919279522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (272944681) 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, 136474340 + 136474341.

It is an arithmetic number, because the mean of its divisors is an integer number (136474341).

Almost surely, 2^272948681 is an apocalyptic number.

It is an amenable number.

272948681 is a deficient number, since it is larger than the sum of its proper divisors (1).

272948681 is an equidigital number, since it uses as much as digits as its factorization.

272948681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 47.

The square root of 272948681 is about 16521.1585852809. The cubic root of 272948681 is about 648.6747602522.

The spelling of 272948681 in words is "two hundred seventy-two million, nine hundred forty-eight thousand, six hundred eighty-one".