272022521 has 2 divisors, whose sum is σ = 272022522. Its totient is φ = 272022520.

The previous prime is 272022503. The next prime is 272022529. The reversal of 272022521 is 125220272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263088400 + 8934121 = 16220^2 + 2989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272022521 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (272022529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136011260 + 136011261.

It is an arithmetic number, because the mean of its divisors is an integer number (136011261).

Almost surely, 2^272022521 is an apocalyptic number.

It is an amenable number.

272022521 is a deficient number, since it is larger than the sum of its proper divisors (1).

272022521 is an equidigital number, since it uses as much as digits as its factorization.

272022521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 272022521 is about 16493.1052564397. The cubic root of 272022521 is about 647.9402419427.

Adding to 272022521 its reverse (125220272), we get a palindrome (397242793).

The spelling of 272022521 in words is "two hundred seventy-two million, twenty-two thousand, five hundred twenty-one".