123648727 has 2 divisors, whose sum is σ = 123648728. Its totient is φ = 123648726.

The previous prime is 123648683. The next prime is 123648737. The reversal of 123648727 is 727846321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123648727 - 2¹⁹ = 123124439 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123648727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123648737) 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 as a sum of consecutive naturals, namely, 61824363 + 61824364.

It is an arithmetic number, because the mean of its divisors is an integer number (61824364).

Almost surely, 2^123648727 is an apocalyptic number.

123648727 is a deficient number, since it is larger than the sum of its proper divisors (1).

123648727 is an equidigital number, since it uses as much as digits as its factorization.

123648727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 123648727 is about 11119.7449161390. The cubic root of 123648727 is about 498.1917711668.

The spelling of 123648727 in words is "one hundred twenty-three million, six hundred forty-eight thousand, seven hundred twenty-seven".