275233261 has 2 divisors, whose sum is σ = 275233262. Its totient is φ = 275233260.

The previous prime is 275233243. The next prime is 275233267. The reversal of 275233261 is 162332572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169780900 + 105452361 = 13030^2 + 10269^2 .

It is a cyclic number.

It is not a de Polignac number, because 275233261 - 2¹⁷ = 275102189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275233267) 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, 137616630 + 137616631.

It is an arithmetic number, because the mean of its divisors is an integer number (137616631).

Almost surely, 2^275233261 is an apocalyptic number.

It is an amenable number.

275233261 is a deficient number, since it is larger than the sum of its proper divisors (1).

275233261 is an equidigital number, since it uses as much as digits as its factorization.

275233261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 275233261 is about 16590.1555447802. The cubic root of 275233261 is about 650.4795364710.

The spelling of 275233261 in words is "two hundred seventy-five million, two hundred thirty-three thousand, two hundred sixty-one".