275901 has 4 divisors (see below), whose sum is σ = 367872. Its totient is φ = 183932.

The previous prime is 275897. The next prime is 275911. The reversal of 275901 is 109572.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 275901 - 2² = 275897 is a prime.

It is a super-2 number, since 2×275901² = 152242723602, which contains 22 as substring.

It is a D-number.

275901 is a lucky number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275911) 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 3 ways as a sum of consecutive naturals, for example, 45981 + ... + 45986.

It is an arithmetic number, because the mean of its divisors is an integer number (91968).

2²⁷⁵⁹⁰¹ is an apocalyptic number.

It is an amenable number.

275901 is a deficient number, since it is larger than the sum of its proper divisors (91971).

275901 is an equidigital number, since it uses as much as digits as its factorization.

275901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91970.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 275901 is about 525.2627913721. The cubic root of 275901 is about 65.1005150962.

It can be divided in two parts, 275 and 901, that added together give a triangular number (1176 = T₄₈).

The spelling of 275901 in words is "two hundred seventy-five thousand, nine hundred one".