275603231 has 2 divisors, whose sum is σ = 275603232. Its totient is φ = 275603230.

The previous prime is 275603213. The next prime is 275603239. The reversal of 275603231 is 132306572.

Together with previous prime (275603213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275603231 is a prime.

It is a super-2 number, since 2×275603231² = 151914281875278722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 275603194 and 275603203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275603239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137801615 + 137801616.

It is an arithmetic number, because the mean of its divisors is an integer number (137801616).

Almost surely, 2^275603231 is an apocalyptic number.

275603231 is a deficient number, since it is larger than the sum of its proper divisors (1).

275603231 is an equidigital number, since it uses as much as digits as its factorization.

275603231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 275603231 is about 16601.3020874870. The cubic root of 275603231 is about 650.7708653151.

The spelling of 275603231 in words is "two hundred seventy-five million, six hundred three thousand, two hundred thirty-one".