126342647 has 16 divisors (see below), whose sum is σ = 138153600. Its totient is φ = 115083360.

The previous prime is 126342641. The next prime is 126342649. The reversal of 126342647 is 746243621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126342647 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 (126342641) 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 15 ways as a sum of consecutive naturals, for example, 257072 + ... + 257562.

It is an arithmetic number, because the mean of its divisors is an integer number (8634600).

Almost surely, 2^126342647 is an apocalyptic number.

126342647 is a deficient number, since it is larger than the sum of its proper divisors (11810953).

126342647 is a wasteful number, since it uses less digits than its factorization.

126342647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006.

The product of its digits is 48384, while the sum is 35.

The square root of 126342647 is about 11240.2245084340. The cubic root of 126342647 is about 501.7838243730.

The spelling of 126342647 in words is "one hundred twenty-six million, three hundred forty-two thousand, six hundred forty-seven".