168857127 has 6 divisors (see below), whose sum is σ = 243904752. Its totient is φ = 112571412.

The previous prime is 168857069. The next prime is 168857231. The reversal of 168857127 is 721758861.

It is a happy number.

It is not a de Polignac number, because 168857127 - 2⁶ = 168857063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168957127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9380943 + ... + 9380960.

It is an arithmetic number, because the mean of its divisors is an integer number (40650792).

Almost surely, 2^168857127 is an apocalyptic number.

168857127 is a deficient number, since it is larger than the sum of its proper divisors (75047625).

168857127 is a wasteful number, since it uses less digits than its factorization.

168857127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18761909 (or 18761906 counting only the distinct ones).

The product of its digits is 188160, while the sum is 45.

The square root of 168857127 is about 12994.5037227283. The cubic root of 168857127 is about 552.7216361319.

The spelling of 168857127 in words is "one hundred sixty-eight million, eight hundred fifty-seven thousand, one hundred twenty-seven".