268489541 has 2 divisors, whose sum is σ = 268489542. Its totient is φ = 268489540.

The previous prime is 268489523. The next prime is 268489577. The reversal of 268489541 is 145984862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268468225 + 21316 = 16385^2 + 146^2 .

It is a cyclic number.

It is not a de Polignac number, because 268489541 - 2⁶ = 268489477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268489591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134244770 + 134244771.

It is an arithmetic number, because the mean of its divisors is an integer number (134244771).

Almost surely, 2^268489541 is an apocalyptic number.

It is an amenable number.

268489541 is a deficient number, since it is larger than the sum of its proper divisors (1).

268489541 is an equidigital number, since it uses as much as digits as its factorization.

268489541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 552960, while the sum is 47.

The square root of 268489541 is about 16385.6504600824. The cubic root of 268489541 is about 645.1228986814.

The spelling of 268489541 in words is "two hundred sixty-eight million, four hundred eighty-nine thousand, five hundred forty-one".