126039647 has 2 divisors, whose sum is σ = 126039648. Its totient is φ = 126039646.

The previous prime is 126039637. The next prime is 126039659. The reversal of 126039647 is 746930621.

It is a weak prime.

It is an emirp because it is prime and its reverse (746930621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126039647 - 2¹⁴ = 126023263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126039647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126039637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63019823 + 63019824.

It is an arithmetic number, because the mean of its divisors is an integer number (63019824).

Almost surely, 2^126039647 is an apocalyptic number.

126039647 is a deficient number, since it is larger than the sum of its proper divisors (1).

126039647 is an equidigital number, since it uses as much as digits as its factorization.

126039647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 126039647 is about 11226.7380391635. The cubic root of 126039647 is about 501.3823705810.

The spelling of 126039647 in words is "one hundred twenty-six million, thirty-nine thousand, six hundred forty-seven".