275164609 has 2 divisors, whose sum is σ = 275164610. Its totient is φ = 275164608.

The previous prime is 275164607. The next prime is 275164651. The reversal of 275164609 is 906461572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169650625 + 105513984 = 13025^2 + 10272^2 .

It is a cyclic number.

It is not a de Polignac number, because 275164609 - 2¹ = 275164607 is a prime.

It is a super-2 number, since 2×275164609² = 151431124092245762, which contains 22 as substring.

Together with 275164607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (275164607) 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, 137582304 + 137582305.

It is an arithmetic number, because the mean of its divisors is an integer number (137582305).

Almost surely, 2^275164609 is an apocalyptic number.

It is an amenable number.

275164609 is a deficient number, since it is larger than the sum of its proper divisors (1).

275164609 is an equidigital number, since it uses as much as digits as its factorization.

275164609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 275164609 is about 16588.0863573831. The cubic root of 275164609 is about 650.4254484895.

The spelling of 275164609 in words is "two hundred seventy-five million, one hundred sixty-four thousand, six hundred nine".