126351447 has 4 divisors (see below), whose sum is σ = 168468600. Its totient is φ = 84234296.

The previous prime is 126351419. The next prime is 126351457. The reversal of 126351447 is 744153621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126351447 - 2¹⁰ = 126350423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126351457) 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 3 ways as a sum of consecutive naturals, for example, 21058572 + ... + 21058577.

It is an arithmetic number, because the mean of its divisors is an integer number (42117150).

Almost surely, 2^126351447 is an apocalyptic number.

126351447 is a deficient number, since it is larger than the sum of its proper divisors (42117153).

126351447 is an equidigital number, since it uses as much as digits as its factorization.

126351447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42117152.

The product of its digits is 20160, while the sum is 33.

The square root of 126351447 is about 11240.6159528738. The cubic root of 126351447 is about 501.7954741609.

The spelling of 126351447 in words is "one hundred twenty-six million, three hundred fifty-one thousand, four hundred forty-seven".