126667603 has 2 divisors, whose sum is σ = 126667604. Its totient is φ = 126667602.

The previous prime is 126667591. The next prime is 126667633. The reversal of 126667603 is 306766621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126667603 is a prime.

It is not a weakly prime, because it can be changed into another prime (126667633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63333801 + 63333802.

It is an arithmetic number, because the mean of its divisors is an integer number (63333802).

Almost surely, 2^126667603 is an apocalyptic number.

126667603 is a deficient number, since it is larger than the sum of its proper divisors (1).

126667603 is an equidigital number, since it uses as much as digits as its factorization.

126667603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 126667603 is about 11254.6702750458. The cubic root of 126667603 is about 502.2136556605.

The spelling of 126667603 in words is "one hundred twenty-six million, six hundred sixty-seven thousand, six hundred three".