275131252 has 18 divisors (see below), whose sum is σ = 529230674. Its totient is φ = 125059440.

The previous prime is 275131249. The next prime is 275131253. The reversal of 275131252 is 252131572.

It can be written as a sum of positive squares in only one way, i.e., 274432356 + 698896 = 16566^2 + 836^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 275131252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275131253) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 283743 + ... + 284710.

Almost surely, 2^275131252 is an apocalyptic number.

275131252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

275131252 is a deficient number, since it is larger than the sum of its proper divisors (254099422).

275131252 is a wasteful number, since it uses less digits than its factorization.

275131252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568479 (or 568466 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 275131252 is about 16587.0808763929. The cubic root of 275131252 is about 650.3991646849.

The spelling of 275131252 in words is "two hundred seventy-five million, one hundred thirty-one thousand, two hundred fifty-two".