268573289 has 2 divisors, whose sum is σ = 268573290. Its totient is φ = 268573288.

The previous prime is 268573271. The next prime is 268573297. The reversal of 268573289 is 982375862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242736400 + 25836889 = 15580^2 + 5083^2 .

It is a cyclic number.

It is not a de Polignac number, because 268573289 - 2⁸ = 268573033 is a prime.

It is a super-2 number, since 2×268573289² = 144263223128555042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268573229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134286644 + 134286645.

It is an arithmetic number, because the mean of its divisors is an integer number (134286645).

Almost surely, 2^268573289 is an apocalyptic number.

It is an amenable number.

268573289 is a deficient number, since it is larger than the sum of its proper divisors (1).

268573289 is an equidigital number, since it uses as much as digits as its factorization.

268573289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The square root of 268573289 is about 16388.2057895305. The cubic root of 268573289 is about 645.1899678811.

It can be divided in two parts, 268573 and 289, that added together give a palindrome (268862).

The spelling of 268573289 in words is "two hundred sixty-eight million, five hundred seventy-three thousand, two hundred eighty-nine".