168830136 has 64 divisors (see below), whose sum is σ = 473191200. Its totient is φ = 55770624.

The previous prime is 168830131. The next prime is 168830171. The reversal of 168830136 is 631038861.

It is a super-2 number, since 2×168830136² = 57007229643556992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 168830136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168830131) 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, 20950 + ... + 27866.

Almost surely, 2^168830136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168830136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236595600).

168830136 is an abundant number, since it is smaller than the sum of its proper divisors (304361064).

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

168830136 is a wasteful number, since it uses less digits than its factorization.

168830136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7045 (or 7035 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 168830136 is about 12993.4651267474. The cubic root of 168830136 is about 552.6921845971.

Adding to 168830136 its reverse (631038861), we get a palindrome (799868997).

The spelling of 168830136 in words is "one hundred sixty-eight million, eight hundred thirty thousand, one hundred thirty-six".