126773929 has 2 divisors, whose sum is σ = 126773930. Its totient is φ = 126773928.

The previous prime is 126773903. The next prime is 126773971. The reversal of 126773929 is 929377621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64000000 + 62773929 = 8000^2 + 7923^2 .

It is an emirp because it is prime and its reverse (929377621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126773929 - 2¹⁵ = 126741161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126773989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63386964 + 63386965.

It is an arithmetic number, because the mean of its divisors is an integer number (63386965).

Almost surely, 2^126773929 is an apocalyptic number.

It is an amenable number.

126773929 is a deficient number, since it is larger than the sum of its proper divisors (1).

126773929 is an equidigital number, since it uses as much as digits as its factorization.

126773929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 46.

The square root of 126773929 is about 11259.3929232441. The cubic root of 126773929 is about 502.3541373460.

The spelling of 126773929 in words is "one hundred twenty-six million, seven hundred seventy-three thousand, nine hundred twenty-nine".