1273158345859 has 2 divisors, whose sum is σ = 1273158345860. Its totient is φ = 1273158345858.

The previous prime is 1273158345799. The next prime is 1273158345889. The reversal of 1273158345859 is 9585438513721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1273158345859 - 2⁷ = 1273158345731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1273158345797 and 1273158345806.

It is not a weakly prime, because it can be changed into another prime (1273158345889) 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, 636579172929 + 636579172930.

It is an arithmetic number, because the mean of its divisors is an integer number (636579172930).

Almost surely, 2^{1273158345859} is an apocalyptic number.

1273158345859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273158345859 is an equidigital number, since it uses as much as digits as its factorization.

1273158345859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288000, while the sum is 61.

The spelling of 1273158345859 in words is "one trillion, two hundred seventy-three billion, one hundred fifty-eight million, three hundred forty-five thousand, eight hundred fifty-nine".