126516029 has 2 divisors, whose sum is σ = 126516030. Its totient is φ = 126516028.

The previous prime is 126516017. The next prime is 126516059. The reversal of 126516029 is 920615621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125664100 + 851929 = 11210^2 + 923^2 .

It is a cyclic number.

It is not a de Polignac number, because 126516029 - 2⁸ = 126515773 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 126515986 and 126516004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126516059) 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, 63258014 + 63258015.

It is an arithmetic number, because the mean of its divisors is an integer number (63258015).

Almost surely, 2^126516029 is an apocalyptic number.

It is an amenable number.

126516029 is a deficient number, since it is larger than the sum of its proper divisors (1).

126516029 is an equidigital number, since it uses as much as digits as its factorization.

126516029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 126516029 is about 11247.9344325969. The cubic root of 126516029 is about 502.0132547306.

The spelling of 126516029 in words is "one hundred twenty-six million, five hundred sixteen thousand, twenty-nine".