272116121 has 2 divisors, whose sum is σ = 272116122. Its totient is φ = 272116120.

The previous prime is 272116099. The next prime is 272116123. The reversal of 272116121 is 121611272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270142096 + 1974025 = 16436^2 + 1405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272116121 is a prime.

It is a Sophie Germain prime.

Together with 272116123, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (272116123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136058060 + 136058061.

It is an arithmetic number, because the mean of its divisors is an integer number (136058061).

Almost surely, 2^272116121 is an apocalyptic number.

It is an amenable number.

272116121 is a deficient number, since it is larger than the sum of its proper divisors (1).

272116121 is an equidigital number, since it uses as much as digits as its factorization.

272116121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 23.

The square root of 272116121 is about 16495.9425617332. The cubic root of 272116121 is about 648.0145498244.

Adding to 272116121 its reverse (121611272), we get a palindrome (393727393).

The spelling of 272116121 in words is "two hundred seventy-two million, one hundred sixteen thousand, one hundred twenty-one".