275160961 has 4 divisors (see below), whose sum is σ = 284649300. Its totient is φ = 265672624.

The previous prime is 275160953. The next prime is 275160973. The reversal of 275160961 is 169061572.

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

It can be written as a sum of positive squares in 2 ways, for example, as 155127025 + 120033936 = 12455^2 + 10956^2 .

It is a cyclic number.

It is not a de Polignac number, because 275160961 - 2³ = 275160953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 275160961.

It is not an unprimeable number, because it can be changed into a prime (275160901) 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, 4744126 + ... + 4744183.

It is an arithmetic number, because the mean of its divisors is an integer number (71162325).

Almost surely, 2^275160961 is an apocalyptic number.

It is an amenable number.

275160961 is a deficient number, since it is larger than the sum of its proper divisors (9488339).

275160961 is an equidigital number, since it uses as much as digits as its factorization.

275160961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488338.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 275160961 is about 16587.9763985846. The cubic root of 275160961 is about 650.4225741343.

The spelling of 275160961 in words is "two hundred seventy-five million, one hundred sixty thousand, nine hundred sixty-one".