275302231 has 2 divisors, whose sum is σ = 275302232. Its totient is φ = 275302230.

The previous prime is 275302217. The next prime is 275302271. The reversal of 275302231 is 132203572.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275302231 is a prime.

It is a super-2 number, since 2×275302231² = 151582636787154722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 275302196 and 275302205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275302271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137651115 + 137651116.

It is an arithmetic number, because the mean of its divisors is an integer number (137651116).

Almost surely, 2^275302231 is an apocalyptic number.

275302231 is a deficient number, since it is larger than the sum of its proper divisors (1).

275302231 is an equidigital number, since it uses as much as digits as its factorization.

275302231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 275302231 is about 16592.2340569316. The cubic root of 275302231 is about 650.5338659352.

The spelling of 275302231 in words is "two hundred seventy-five million, three hundred two thousand, two hundred thirty-one".