126379439 has 2 divisors, whose sum is σ = 126379440. Its totient is φ = 126379438.

The previous prime is 126379423. The next prime is 126379447. The reversal of 126379439 is 934973621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126379439 - 2⁴ = 126379423 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126379439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126379459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63189719 + 63189720.

It is an arithmetic number, because the mean of its divisors is an integer number (63189720).

Almost surely, 2^126379439 is an apocalyptic number.

126379439 is a deficient number, since it is larger than the sum of its proper divisors (1).

126379439 is an equidigital number, since it uses as much as digits as its factorization.

126379439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 44.

The square root of 126379439 is about 11241.8610114162. The cubic root of 126379439 is about 501.8325274808.

The spelling of 126379439 in words is "one hundred twenty-six million, three hundred seventy-nine thousand, four hundred thirty-nine".