126428629 has 2 divisors, whose sum is σ = 126428630. Its totient is φ = 126428628.

The previous prime is 126428623. The next prime is 126428651. The reversal of 126428629 is 926824621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76160529 + 50268100 = 8727^2 + 7090^2 .

It is a cyclic number.

It is not a de Polignac number, because 126428629 - 2¹¹ = 126426581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126428591 and 126428600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126428623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63214314 + 63214315.

It is an arithmetic number, because the mean of its divisors is an integer number (63214315).

Almost surely, 2^126428629 is an apocalyptic number.

It is an amenable number.

126428629 is a deficient number, since it is larger than the sum of its proper divisors (1).

126428629 is an equidigital number, since it uses as much as digits as its factorization.

126428629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 40.

The square root of 126428629 is about 11244.0486035947. The cubic root of 126428629 is about 501.8976275747.

The spelling of 126428629 in words is "one hundred twenty-six million, four hundred twenty-eight thousand, six hundred twenty-nine".