255140269 has 2 divisors, whose sum is σ = 255140270. Its totient is φ = 255140268.

The previous prime is 255140239. The next prime is 255140273. The reversal of 255140269 is 962041552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147914244 + 107226025 = 12162^2 + 10355^2 .

It is a cyclic number.

It is not a de Polignac number, because 255140269 - 2⁷ = 255140141 is a prime.

It is a super-2 number, since 2×255140269² = 130193113730784722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255140239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127570134 + 127570135.

It is an arithmetic number, because the mean of its divisors is an integer number (127570135).

Almost surely, 2^255140269 is an apocalyptic number.

It is an amenable number.

255140269 is a deficient number, since it is larger than the sum of its proper divisors (1).

255140269 is an equidigital number, since it uses as much as digits as its factorization.

255140269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 255140269 is about 15973.1108116109. The cubic root of 255140269 is about 634.2488226130.

The spelling of 255140269 in words is "two hundred fifty-five million, one hundred forty thousand, two hundred sixty-nine".