275165245 has 4 divisors (see below), whose sum is σ = 330198300. Its totient is φ = 220132192.

The previous prime is 275165167. The next prime is 275165287. The reversal of 275165245 is 542561572.

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 188842564 + 86322681 = 13742^2 + 9291^2 .

It is a cyclic number.

It is not a de Polignac number, because 275165245 - 2⁷ = 275165117 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 27516520 + ... + 27516529.

It is an arithmetic number, because the mean of its divisors is an integer number (82549575).

Almost surely, 2^275165245 is an apocalyptic number.

It is an amenable number.

275165245 is a deficient number, since it is larger than the sum of its proper divisors (55033055).

275165245 is an equidigital number, since it uses as much as digits as its factorization.

275165245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55033054.

The product of its digits is 84000, while the sum is 37.

The square root of 275165245 is about 16588.1055277569. The cubic root of 275165245 is about 650.4259496081.

It can be divided in two parts, 27516 and 5245, that added together give a square (32761 = 181²).

The spelling of 275165245 in words is "two hundred seventy-five million, one hundred sixty-five thousand, two hundred forty-five".