126860399 has 2 divisors, whose sum is σ = 126860400. Its totient is φ = 126860398.

The previous prime is 126860347. The next prime is 126860407. The reversal of 126860399 is 993068621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126860399 is a prime.

It is a Sophie Germain 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 (126860329) 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, 63430199 + 63430200.

It is an arithmetic number, because the mean of its divisors is an integer number (63430200).

Almost surely, 2^126860399 is an apocalyptic number.

126860399 is a deficient number, since it is larger than the sum of its proper divisors (1).

126860399 is an equidigital number, since it uses as much as digits as its factorization.

126860399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 126860399 is about 11263.2321737590. The cubic root of 126860399 is about 502.4683266754.

The spelling of 126860399 in words is "one hundred twenty-six million, eight hundred sixty thousand, three hundred ninety-nine".