126420293 has 2 divisors, whose sum is σ = 126420294. Its totient is φ = 126420292.

The previous prime is 126420289. The next prime is 126420299. The reversal of 126420293 is 392024621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117462244 + 8958049 = 10838^2 + 2993^2 .

It is a cyclic number.

It is not a de Polignac number, because 126420293 - 2² = 126420289 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 (126420299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63210146 + 63210147.

It is an arithmetic number, because the mean of its divisors is an integer number (63210147).

Almost surely, 2^126420293 is an apocalyptic number.

It is an amenable number.

126420293 is a deficient number, since it is larger than the sum of its proper divisors (1).

126420293 is an equidigital number, since it uses as much as digits as its factorization.

126420293 is an odious number, because the sum of its binary digits is odd.

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

The square root of 126420293 is about 11243.6779124982. The cubic root of 126420293 is about 501.8865965537.

The spelling of 126420293 in words is "one hundred twenty-six million, four hundred twenty thousand, two hundred ninety-three".