123606871 has 2 divisors, whose sum is σ = 123606872. Its totient is φ = 123606870.

The previous prime is 123606869. The next prime is 123606883. The reversal of 123606871 is 178606321.

It is a weak prime.

It is an emirp because it is prime and its reverse (178606321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123606871 - 2¹ = 123606869 is a prime.

Together with 123606869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123601871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61803435 + 61803436.

It is an arithmetic number, because the mean of its divisors is an integer number (61803436).

Almost surely, 2^123606871 is an apocalyptic number.

123606871 is a deficient number, since it is larger than the sum of its proper divisors (1).

123606871 is an equidigital number, since it uses as much as digits as its factorization.

123606871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 123606871 is about 11117.8626992781. The cubic root of 123606871 is about 498.1355509678.

The spelling of 123606871 in words is "one hundred twenty-three million, six hundred six thousand, eight hundred seventy-one".