126320429 has 2 divisors, whose sum is σ = 126320430. Its totient is φ = 126320428.

The previous prime is 126320407. The next prime is 126320503. The reversal of 126320429 is 924023621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99301225 + 27019204 = 9965^2 + 5198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126320429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126322429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63160214 + 63160215.

It is an arithmetic number, because the mean of its divisors is an integer number (63160215).

Almost surely, 2^126320429 is an apocalyptic number.

It is an amenable number.

126320429 is a deficient number, since it is larger than the sum of its proper divisors (1).

126320429 is an equidigital number, since it uses as much as digits as its factorization.

126320429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 126320429 is about 11239.2361395248. The cubic root of 126320429 is about 501.7544088989.

The spelling of 126320429 in words is "one hundred twenty-six million, three hundred twenty thousand, four hundred twenty-nine".