275331 has 12 divisors (see below), whose sum is σ = 427272. Its totient is φ = 157248.

The previous prime is 275323. The next prime is 275339. The reversal of 275331 is 133572.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (275323) and next prime (275339).

It is not a de Polignac number, because 275331 - 2³ = 275323 is a prime.

It is a super-2 number, since 2×275331² = 151614319122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁵ + 7³ + 3⁹ + 5⁷ + 3¹¹ + 1 .

It is a junction number, because it is equal to n+sod(n) for n = 275298 and 275307.

It is not an unprimeable number, because it can be changed into a prime (275339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 790 + ... + 1083.

It is an arithmetic number, because the mean of its divisors is an integer number (35606).

2²⁷⁵³³¹ is an apocalyptic number.

275331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

275331 is a deficient number, since it is larger than the sum of its proper divisors (151941).

275331 is a wasteful number, since it uses less digits than its factorization.

275331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890 (or 1883 counting only the distinct ones).

The product of its digits is 630, while the sum is 21.

The square root of 275331 is about 524.7199252935. The cubic root of 275331 is about 65.0556525343.

It can be divided in two parts, 275 and 331, that added together give a palindrome (606).

The spelling of 275331 in words is "two hundred seventy-five thousand, three hundred thirty-one".