126344047 has 4 divisors (see below), whose sum is σ = 126366760. Its totient is φ = 126321336.

The previous prime is 126344033. The next prime is 126344069. The reversal of 126344047 is 740443621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126344047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126344077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3253 + ... + 16225.

It is an arithmetic number, because the mean of its divisors is an integer number (31591690).

Almost surely, 2^126344047 is an apocalyptic number.

126344047 is a deficient number, since it is larger than the sum of its proper divisors (22713).

126344047 is an equidigital number, since it uses as much as digits as its factorization.

126344047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22712.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 126344047 is about 11240.2867845976. The cubic root of 126344047 is about 501.7856777845.

Adding to 126344047 its reverse (740443621), we get a palindrome (866787668).

The spelling of 126344047 in words is "one hundred twenty-six million, three hundred forty-four thousand, forty-seven".