275165243 has 4 divisors (see below), whose sum is σ = 275932080. Its totient is φ = 274398408.

The previous prime is 275165167. The next prime is 275165287. The reversal of 275165243 is 342561572.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 275165243 - 2⁸ = 275164987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275165743) 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 in 3 ways as a sum of consecutive naturals, for example, 382880 + ... + 383597.

It is an arithmetic number, because the mean of its divisors is an integer number (68983020).

Almost surely, 2^275165243 is an apocalyptic number.

275165243 is a deficient number, since it is larger than the sum of its proper divisors (766837).

275165243 is an equidigital number, since it uses as much as digits as its factorization.

275165243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766836.

The product of its digits is 50400, while the sum is 35.

The square root of 275165243 is about 16588.1054674728. The cubic root of 275165243 is about 650.4259480322.

The spelling of 275165243 in words is "two hundred seventy-five million, one hundred sixty-five thousand, two hundred forty-three".