126786773 has 2 divisors, whose sum is σ = 126786774. Its totient is φ = 126786772.

The previous prime is 126786769. The next prime is 126786817. The reversal of 126786773 is 377687621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74615044 + 52171729 = 8638^2 + 7223^2 .

It is a cyclic number.

It is not a de Polignac number, because 126786773 - 2² = 126786769 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126786743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63393386 + 63393387.

It is an arithmetic number, because the mean of its divisors is an integer number (63393387).

Almost surely, 2^126786773 is an apocalyptic number.

It is an amenable number.

126786773 is a deficient number, since it is larger than the sum of its proper divisors (1).

126786773 is an equidigital number, since it uses as much as digits as its factorization.

126786773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 47.

The square root of 126786773 is about 11259.9632770272. The cubic root of 126786773 is about 502.3711019767.

The spelling of 126786773 in words is "one hundred twenty-six million, seven hundred eighty-six thousand, seven hundred seventy-three".