126859829 has 2 divisors, whose sum is σ = 126859830. Its totient is φ = 126859828.

The previous prime is 126859819. The next prime is 126859849. The reversal of 126859829 is 928958621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93566929 + 33292900 = 9673^2 + 5770^2 .

It is a cyclic number.

It is not a de Polignac number, because 126859829 - 2⁴ = 126859813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126859819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63429914 + 63429915.

It is an arithmetic number, because the mean of its divisors is an integer number (63429915).

Almost surely, 2^126859829 is an apocalyptic number.

It is an amenable number.

126859829 is a deficient number, since it is larger than the sum of its proper divisors (1).

126859829 is an equidigital number, since it uses as much as digits as its factorization.

126859829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 50.

The square root of 126859829 is about 11263.2068701591. The cubic root of 126859829 is about 502.4675741227.

The spelling of 126859829 in words is "one hundred twenty-six million, eight hundred fifty-nine thousand, eight hundred twenty-nine".