275741729 has 2 divisors, whose sum is σ = 275741730. Its totient is φ = 275741728.

The previous prime is 275741707. The next prime is 275741731. The reversal of 275741729 is 927147572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173185600 + 102556129 = 13160^2 + 10127^2 .

It is a cyclic number.

It is not a de Polignac number, because 275741729 - 2²⁴ = 258964513 is a prime.

It is a super-2 number, since 2×275741729² = 152067002223818882, which contains 22 as substring.

Together with 275741731, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275741729.

It is not a weakly prime, because it can be changed into another prime (275741029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137870864 + 137870865.

It is an arithmetic number, because the mean of its divisors is an integer number (137870865).

Almost surely, 2^275741729 is an apocalyptic number.

It is an amenable number.

275741729 is a deficient number, since it is larger than the sum of its proper divisors (1).

275741729 is an equidigital number, since it uses as much as digits as its factorization.

275741729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 246960, while the sum is 44.

The square root of 275741729 is about 16605.4728628847. The cubic root of 275741729 is about 650.8798569859.

The spelling of 275741729 in words is "two hundred seventy-five million, seven hundred forty-one thousand, seven hundred twenty-nine".