168100709 has 16 divisors (see below), whose sum is σ = 205527168. Its totient is φ = 134203392.

The previous prime is 168100651. The next prime is 168100727. The reversal of 168100709 is 907001861.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168100709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168100799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4262 + ... + 18824.

It is an arithmetic number, because the mean of its divisors is an integer number (12845448).

Almost surely, 2^168100709 is an apocalyptic number.

It is an amenable number.

168100709 is a deficient number, since it is larger than the sum of its proper divisors (37426459).

168100709 is a wasteful number, since it uses less digits than its factorization.

168100709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14684.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 168100709 is about 12965.3657487940. The cubic root of 168100709 is about 551.8950705912.

The spelling of 168100709 in words is "one hundred sixty-eight million, one hundred thousand, seven hundred nine".