1260543259 has 2 divisors, whose sum is σ = 1260543260. Its totient is φ = 1260543258.

The previous prime is 1260543247. The next prime is 1260543299. The reversal of 1260543259 is 9523450621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1260543259 - 2⁷ = 1260543131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1260543299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630271629 + 630271630.

It is an arithmetic number, because the mean of its divisors is an integer number (630271630).

Almost surely, 2^1260543259 is an apocalyptic number.

1260543259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260543259 is an equidigital number, since it uses as much as digits as its factorization.

1260543259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1260543259 is about 35504.1301681931. The cubic root of 1260543259 is about 1080.2375046363.

The spelling of 1260543259 in words is "one billion, two hundred sixty million, five hundred forty-three thousand, two hundred fifty-nine".