126866371 has 2 divisors, whose sum is σ = 126866372. Its totient is φ = 126866370.

The previous prime is 126866351. The next prime is 126866407. The reversal of 126866371 is 173668621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126866371 - 2²³ = 118477763 is a prime.

It is not a weakly prime, because it can be changed into another prime (126866351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63433185 + 63433186.

It is an arithmetic number, because the mean of its divisors is an integer number (63433186).

Almost surely, 2^126866371 is an apocalyptic number.

126866371 is a deficient number, since it is larger than the sum of its proper divisors (1).

126866371 is an equidigital number, since it uses as much as digits as its factorization.

126866371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 126866371 is about 11263.4972810402. The cubic root of 126866371 is about 502.4762111788.

The spelling of 126866371 in words is "one hundred twenty-six million, eight hundred sixty-six thousand, three hundred seventy-one".