168136746 has 32 divisors (see below), whose sum is σ = 348297216. Its totient is φ = 54054000.

The previous prime is 168136741. The next prime is 168136789. The reversal of 168136746 is 647631861.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 168136698 and 168136707.

It is not an unprimeable number, because it can be changed into a prime (168136741) 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, 60201 + ... + 62931.

It is an arithmetic number, because the mean of its divisors is an integer number (10884288).

Almost surely, 2^168136746 is an apocalyptic number.

168136746 is an abundant number, since it is smaller than the sum of its proper divisors (180160470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168136746 is a wasteful number, since it uses less digits than its factorization.

168136746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098.

The product of its digits is 145152, while the sum is 42.

The square root of 168136746 is about 12966.7554152918. The cubic root of 168136746 is about 551.9345057245.

The spelling of 168136746 in words is "one hundred sixty-eight million, one hundred thirty-six thousand, seven hundred forty-six".