126365647 has 2 divisors, whose sum is σ = 126365648. Its totient is φ = 126365646.

The previous prime is 126365627. The next prime is 126365717. The reversal of 126365647 is 746563621.

It is a weak prime.

It is an emirp because it is prime and its reverse (746563621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126365647 - 2¹⁵ = 126332879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126365627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63182823 + 63182824.

It is an arithmetic number, because the mean of its divisors is an integer number (63182824).

Almost surely, 2^126365647 is an apocalyptic number.

126365647 is a deficient number, since it is larger than the sum of its proper divisors (1).

126365647 is an equidigital number, since it uses as much as digits as its factorization.

126365647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 126365647 is about 11241.2475731122. The cubic root of 126365647 is about 501.8142715418.

The spelling of 126365647 in words is "one hundred twenty-six million, three hundred sixty-five thousand, six hundred forty-seven".