126366599 has 2 divisors, whose sum is σ = 126366600. Its totient is φ = 126366598.

The previous prime is 126366553. The next prime is 126366607. The reversal of 126366599 is 995663621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126366599 - 2⁸ = 126366343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126366529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63183299 + 63183300.

It is an arithmetic number, because the mean of its divisors is an integer number (63183300).

Almost surely, 2^126366599 is an apocalyptic number.

126366599 is a deficient number, since it is larger than the sum of its proper divisors (1).

126366599 is an equidigital number, since it uses as much as digits as its factorization.

126366599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 47.

The square root of 126366599 is about 11241.2899170869. The cubic root of 126366599 is about 501.8155317102.

The spelling of 126366599 in words is "one hundred twenty-six million, three hundred sixty-six thousand, five hundred ninety-nine".