126866407 has 2 divisors, whose sum is σ = 126866408. Its totient is φ = 126866406.

The previous prime is 126866371. The next prime is 126866419. The reversal of 126866407 is 704668621.

It is a strong prime.

It is an emirp because it is prime and its reverse (704668621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126866407 - 2¹¹ = 126864359 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126866407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126866437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63433203 + 63433204.

It is an arithmetic number, because the mean of its divisors is an integer number (63433204).

Almost surely, 2^126866407 is an apocalyptic number.

126866407 is a deficient number, since it is larger than the sum of its proper divisors (1).

126866407 is an equidigital number, since it uses as much as digits as its factorization.

126866407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 126866407 is about 11263.4988791228. The cubic root of 126866407 is about 502.4762587069.

The spelling of 126866407 in words is "one hundred twenty-six million, eight hundred sixty-six thousand, four hundred seven".