275131408 has 20 divisors (see below), whose sum is σ = 547475500. Its totient is φ = 133847424.

The previous prime is 275131399. The next prime is 275131421. The reversal of 275131408 is 804131572.

It can be written as a sum of positive squares in 2 ways, for example, as 157452304 + 117679104 = 12548^2 + 10848^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 275131408.

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, 231783 + ... + 232966.

It is an arithmetic number, because the mean of its divisors is an integer number (27373775).

Almost surely, 2^275131408 is an apocalyptic number.

It is an amenable number.

275131408 is a deficient number, since it is larger than the sum of its proper divisors (272344092).

275131408 is a wasteful number, since it uses less digits than its factorization.

275131408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464794 (or 464788 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 275131408 is about 16587.0855788472. The cubic root of 275131408 is about 650.3992876108.

The spelling of 275131408 in words is "two hundred seventy-five million, one hundred thirty-one thousand, four hundred eight".