126806573 has 2 divisors, whose sum is σ = 126806574. Its totient is φ = 126806572.

The previous prime is 126806557. The next prime is 126806593. The reversal of 126806573 is 375608621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126742564 + 64009 = 11258^2 + 253^2 .

It is an emirp because it is prime and its reverse (375608621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126806573 - 2⁴ = 126806557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126806593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63403286 + 63403287.

It is an arithmetic number, because the mean of its divisors is an integer number (63403287).

Almost surely, 2^126806573 is an apocalyptic number.

It is an amenable number.

126806573 is a deficient number, since it is larger than the sum of its proper divisors (1).

126806573 is an equidigital number, since it uses as much as digits as its factorization.

126806573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 126806573 is about 11260.8424640433. The cubic root of 126806573 is about 502.3972519970.

The spelling of 126806573 in words is "one hundred twenty-six million, eight hundred six thousand, five hundred seventy-three".