275128804 has 6 divisors (see below), whose sum is σ = 481475414. Its totient is φ = 137564400.

The previous prime is 275128801. The next prime is 275128807. The reversal of 275128804 is 408821572.

It is an interprime number because it is at equal distance from previous prime (275128801) and next prime (275128807).

It can be written as a sum of positive squares in only one way, i.e., 148791204 + 126337600 = 12198^2 + 11240^2 .

It is a super-3 number, since 3×275128804³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (275128801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34391097 + ... + 34391104.

Almost surely, 2^275128804 is an apocalyptic number.

It is an amenable number.

275128804 is a deficient number, since it is larger than the sum of its proper divisors (206346610).

275128804 is a wasteful number, since it uses less digits than its factorization.

275128804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68782205 (or 68782203 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 275128804 is about 16587.0070838593. The cubic root of 275128804 is about 650.3972356882.

The spelling of 275128804 in words is "two hundred seventy-five million, one hundred twenty-eight thousand, eight hundred four".