168452986 has 8 divisors (see below), whose sum is σ = 272116404. Its totient is φ = 77747520.

The previous prime is 168452981. The next prime is 168452987. The reversal of 168452986 is 689254861.

It can be written as a sum of positive squares in 2 ways, for example, as 163047361 + 5405625 = 12769^2 + 2325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (168452981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3239455 + ... + 3239506.

Almost surely, 2^168452986 is an apocalyptic number.

168452986 is a deficient number, since it is larger than the sum of its proper divisors (103663418).

168452986 is a wasteful number, since it uses less digits than its factorization.

168452986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6478976.

The product of its digits is 829440, while the sum is 49.

The square root of 168452986 is about 12978.9439477948. The cubic root of 168452986 is about 552.2803243439.

The spelling of 168452986 in words is "one hundred sixty-eight million, four hundred fifty-two thousand, nine hundred eighty-six".