168127685 has 12 divisors (see below), whose sum is σ = 221762604. Its totient is φ = 122274240.

The previous prime is 168127681. The next prime is 168127691. The reversal of 168127685 is 586721861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 84971524 + 83156161 = 9218^2 + 9119^2 .

It is not a de Polignac number, because 168127685 - 2² = 168127681 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 (168127681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138344 + ... + 139553.

It is an arithmetic number, because the mean of its divisors is an integer number (18480217).

Almost surely, 2^168127685 is an apocalyptic number.

It is an amenable number.

168127685 is a deficient number, since it is larger than the sum of its proper divisors (53634919).

168127685 is a wasteful number, since it uses less digits than its factorization.

168127685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277924 (or 277913 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The square root of 168127685 is about 12966.4060170889. The cubic root of 168127685 is about 551.9245908417.

The spelling of 168127685 in words is "one hundred sixty-eight million, one hundred twenty-seven thousand, six hundred eighty-five".