275719121 has 2 divisors, whose sum is σ = 275719122. Its totient is φ = 275719120.

The previous prime is 275719069. The next prime is 275719123. The reversal of 275719121 is 121917572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223084096 + 52635025 = 14936^2 + 7255^2 .

It is a cyclic number.

It is not a de Polignac number, because 275719121 - 2¹⁸ = 275456977 is a prime.

It is a Sophie Germain prime.

Together with 275719123, 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 (275719123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137859560 + 137859561.

It is an arithmetic number, because the mean of its divisors is an integer number (137859561).

Almost surely, 2^275719121 is an apocalyptic number.

It is an amenable number.

275719121 is a deficient number, since it is larger than the sum of its proper divisors (1).

275719121 is an equidigital number, since it uses as much as digits as its factorization.

275719121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8820, while the sum is 35.

The square root of 275719121 is about 16604.7921095086. The cubic root of 275719121 is about 650.8620680039.

The spelling of 275719121 in words is "two hundred seventy-five million, seven hundred nineteen thousand, one hundred twenty-one".