272128933 has 2 divisors, whose sum is σ = 272128934. Its totient is φ = 272128932.

The previous prime is 272128921. The next prime is 272128949. The reversal of 272128933 is 339821272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137522529 + 134606404 = 11727^2 + 11602^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272128933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 272128892 and 272128901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272128733) 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, 136064466 + 136064467.

It is an arithmetic number, because the mean of its divisors is an integer number (136064467).

Almost surely, 2^272128933 is an apocalyptic number.

It is an amenable number.

272128933 is a deficient number, since it is larger than the sum of its proper divisors (1).

272128933 is an equidigital number, since it uses as much as digits as its factorization.

272128933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 272128933 is about 16496.3308950809. The cubic root of 272128933 is about 648.0247197868.

The spelling of 272128933 in words is "two hundred seventy-two million, one hundred twenty-eight thousand, nine hundred thirty-three".