126713273 has 2 divisors, whose sum is σ = 126713274. Its totient is φ = 126713272.

The previous prime is 126713243. The next prime is 126713309. The reversal of 126713273 is 372317621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112635769 + 14077504 = 10613^2 + 3752^2 .

It is a cyclic number.

It is not a de Polignac number, because 126713273 - 2¹⁰ = 126712249 is a prime.

It is not a weakly prime, because it can be changed into another prime (126713243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63356636 + 63356637.

It is an arithmetic number, because the mean of its divisors is an integer number (63356637).

Almost surely, 2^126713273 is an apocalyptic number.

It is an amenable number.

126713273 is a deficient number, since it is larger than the sum of its proper divisors (1).

126713273 is an equidigital number, since it uses as much as digits as its factorization.

126713273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 32.

The square root of 126713273 is about 11256.6990276901. The cubic root of 126713273 is about 502.2740061136.

The spelling of 126713273 in words is "one hundred twenty-six million, seven hundred thirteen thousand, two hundred seventy-three".