168106939 has 32 divisors (see below), whose sum is σ = 233533440. Its totient is φ = 116726400.

The previous prime is 168106933. The next prime is 168106943. The reversal of 168106939 is 939601861.

168106939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168106939 - 2⁵ = 168106907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168106895 and 168106904.

It is not an unprimeable number, because it can be changed into a prime (168106933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26134 + ... + 31924.

It is an arithmetic number, because the mean of its divisors is an integer number (7297920).

Almost surely, 2^168106939 is an apocalyptic number.

168106939 is a deficient number, since it is larger than the sum of its proper divisors (65426501).

168106939 is a wasteful number, since it uses less digits than its factorization.

168106939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 168106939 is about 12965.6060020348. The cubic root of 168106939 is about 551.9018884562.

The spelling of 168106939 in words is "one hundred sixty-eight million, one hundred six thousand, nine hundred thirty-nine".