1273740152813 has 2 divisors, whose sum is σ = 1273740152814. Its totient is φ = 1273740152812.

The previous prime is 1273740152803. The next prime is 1273740152833. The reversal of 1273740152813 is 3182510473721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1199371044964 + 74369107849 = 1095158^2 + 272707^2 .

It is a cyclic number.

It is not a de Polignac number, because 1273740152813 - 2⁶ = 1273740152749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1273740152803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636870076406 + 636870076407.

It is an arithmetic number, because the mean of its divisors is an integer number (636870076407).

Almost surely, 2^{1273740152813} is an apocalyptic number.

It is an amenable number.

1273740152813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273740152813 is an equidigital number, since it uses as much as digits as its factorization.

1273740152813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 1273740152813 in words is "one trillion, two hundred seventy-three billion, seven hundred forty million, one hundred fifty-two thousand, eight hundred thirteen".