126445663 has 2 divisors, whose sum is σ = 126445664. Its totient is φ = 126445662.

The previous prime is 126445661. The next prime is 126445667. The reversal of 126445663 is 366544621.

It is a weak prime.

It is an emirp because it is prime and its reverse (366544621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126445663 - 2¹ = 126445661 is a prime.

Together with 126445661, it forms a pair of twin primes.

It is equal to p_7187761 and since 126445663 and 7187761 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126445661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63222831 + 63222832.

It is an arithmetic number, because the mean of its divisors is an integer number (63222832).

Almost surely, 2^126445663 is an apocalyptic number.

126445663 is a deficient number, since it is larger than the sum of its proper divisors (1).

126445663 is an equidigital number, since it uses as much as digits as its factorization.

126445663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The square root of 126445663 is about 11244.8060454594. The cubic root of 126445663 is about 501.9201671433.

The spelling of 126445663 in words is "one hundred twenty-six million, four hundred forty-five thousand, six hundred sixty-three".