126663449 has 8 divisors (see below), whose sum is σ = 141118848. Its totient is φ = 112698160.

The previous prime is 126663437. The next prime is 126663463. The reversal of 126663449 is 944366621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126663449 - 2⁸ = 126663193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126663409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121982 + ... + 123015.

It is an arithmetic number, because the mean of its divisors is an integer number (17639856).

Almost surely, 2^126663449 is an apocalyptic number.

It is an amenable number.

126663449 is a deficient number, since it is larger than the sum of its proper divisors (14455399).

126663449 is a wasteful number, since it uses less digits than its factorization.

126663449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245055.

The product of its digits is 186624, while the sum is 41.

The square root of 126663449 is about 11254.4857279220. The cubic root of 126663449 is about 502.2081656529.

The spelling of 126663449 in words is "one hundred twenty-six million, six hundred sixty-three thousand, four hundred forty-nine".