1341728273 has 2 divisors, whose sum is σ = 1341728274. Its totient is φ = 1341728272.

The previous prime is 1341728257. The next prime is 1341728309. The reversal of 1341728273 is 3728271431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1057030144 + 284698129 = 32512^2 + 16873^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341728273 - 2⁴ = 1341728257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1341758273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670864136 + 670864137.

It is an arithmetic number, because the mean of its divisors is an integer number (670864137).

Almost surely, 2^1341728273 is an apocalyptic number.

It is an amenable number.

1341728273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341728273 is an equidigital number, since it uses as much as digits as its factorization.

1341728273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 1341728273 is about 36629.6092389750. The cubic root of 1341728273 is about 1102.9475418682.

The spelling of 1341728273 in words is "one billion, three hundred forty-one million, seven hundred twenty-eight thousand, two hundred seventy-three".