275617145 has 4 divisors (see below), whose sum is σ = 330740580. Its totient is φ = 220493712.

The previous prime is 275617109. The next prime is 275617159. The reversal of 275617145 is 541716572.

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 215972416 + 59644729 = 14696^2 + 7723^2 .

It is a cyclic number.

It is not a de Polignac number, because 275617145 - 2⁶ = 275617081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 275617099 and 275617108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27561710 + ... + 27561719.

It is an arithmetic number, because the mean of its divisors is an integer number (82685145).

Almost surely, 2^275617145 is an apocalyptic number.

It is an amenable number.

275617145 is a deficient number, since it is larger than the sum of its proper divisors (55123435).

275617145 is an equidigital number, since it uses as much as digits as its factorization.

275617145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55123434.

The product of its digits is 58800, while the sum is 38.

The square root of 275617145 is about 16601.7211457126. The cubic root of 275617145 is about 650.7818166544.

The spelling of 275617145 in words is "two hundred seventy-five million, six hundred seventeen thousand, one hundred forty-five".