126342447 has 16 divisors (see below), whose sum is σ = 210024192. Its totient is φ = 65632320.

The previous prime is 126342431. The next prime is 126342449. The reversal of 126342447 is 744243621.

It is not a de Polignac number, because 126342447 - 2⁴ = 126342431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126342449) 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 in 15 ways as a sum of consecutive naturals, for example, 273238 + ... + 273699.

It is an arithmetic number, because the mean of its divisors is an integer number (13126512).

Almost surely, 2^126342447 is an apocalyptic number.

126342447 is a deficient number, since it is larger than the sum of its proper divisors (83681745).

126342447 is a wasteful number, since it uses less digits than its factorization.

126342447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546958.

The product of its digits is 32256, while the sum is 33.

The square root of 126342447 is about 11240.2156118110. The cubic root of 126342447 is about 501.7835595988.

The spelling of 126342447 in words is "one hundred twenty-six million, three hundred forty-two thousand, four hundred forty-seven".