275969 has 2 divisors, whose sum is σ = 275970. Its totient is φ = 275968.

The previous prime is 275963. The next prime is 275981. The reversal of 275969 is 969572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193600 + 82369 = 440^2 + 287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275969 is a prime.

It is a super-2 number, since 2×275969² = 152317777922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (275963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137984 + 137985.

It is an arithmetic number, because the mean of its divisors is an integer number (137985).

2²⁷⁵⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

275969 is a deficient number, since it is larger than the sum of its proper divisors (1).

275969 is an equidigital number, since it uses as much as digits as its factorization.

275969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 38.

The square root of 275969 is about 525.3275168883. The cubic root of 275969 is about 65.1058629944.

The spelling of 275969 in words is "two hundred seventy-five thousand, nine hundred sixty-nine".