275685469 has 2 divisors, whose sum is σ = 275685470. Its totient is φ = 275685468.

The previous prime is 275685463. The next prime is 275685493. The reversal of 275685469 is 964586572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251064025 + 24621444 = 15845^2 + 4962^2 .

It is a cyclic number.

It is not a de Polignac number, because 275685469 - 2³ = 275685461 is a prime.

It is a super-2 number, since 2×275685469² = 152004955635499922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275685461) 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, 137842734 + 137842735.

It is an arithmetic number, because the mean of its divisors is an integer number (137842735).

Almost surely, 2^275685469 is an apocalyptic number.

It is an amenable number.

275685469 is a deficient number, since it is larger than the sum of its proper divisors (1).

275685469 is an equidigital number, since it uses as much as digits as its factorization.

275685469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3628800, while the sum is 52.

The square root of 275685469 is about 16603.7787566566. The cubic root of 275685469 is about 650.8355873093.

The spelling of 275685469 in words is "two hundred seventy-five million, six hundred eighty-five thousand, four hundred sixty-nine".