275949 has 6 divisors (see below), whose sum is σ = 398606. Its totient is φ = 183960.

The previous prime is 275941. The next prime is 275963. The reversal of 275949 is 949572.

It can be written as a sum of positive squares in only one way, i.e., 275625 + 324 = 525^2 + 18^2 .

It is not a de Polignac number, because 275949 - 2³ = 275941 is a prime.

It is a super-2 number, since 2×275949² = 152295701202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275941) 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 in 5 ways as a sum of consecutive naturals, for example, 15322 + ... + 15339.

2²⁷⁵⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

275949 is a deficient number, since it is larger than the sum of its proper divisors (122657).

275949 is a wasteful number, since it uses less digits than its factorization.

275949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30667 (or 30664 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 275949 is about 525.3084807996. The cubic root of 275949 is about 65.1042901743.

The spelling of 275949 in words is "two hundred seventy-five thousand, nine hundred forty-nine".