275823145 has 8 divisors (see below), whose sum is σ = 356448456. Its totient is φ = 203684736.

The previous prime is 275823103. The next prime is 275823157. The reversal of 275823145 is 541328572.

It can be written as a sum of positive squares in 4 ways, for example, as 7551504 + 268271641 = 2748^2 + 16379^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 275823145 - 2⁷ = 275823017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2121652 + ... + 2121781.

It is an arithmetic number, because the mean of its divisors is an integer number (44556057).

Almost surely, 2^275823145 is an apocalyptic number.

It is an amenable number.

275823145 is a deficient number, since it is larger than the sum of its proper divisors (80625311).

275823145 is a wasteful number, since it uses less digits than its factorization.

275823145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243451.

The product of its digits is 67200, while the sum is 37.

The square root of 275823145 is about 16607.9241628808. The cubic root of 275823145 is about 650.9439106688.

The spelling of 275823145 in words is "two hundred seventy-five million, eight hundred twenty-three thousand, one hundred forty-five".