168162393 has 8 divisors (see below), whose sum is σ = 256247488. Its totient is φ = 96092784.

The previous prime is 168162389. The next prime is 168162403. The reversal of 168162393 is 393261861.

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

It is not a de Polignac number, because 168162393 - 2² = 168162389 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168162343) 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 7 ways as a sum of consecutive naturals, for example, 4003846 + ... + 4003887.

It is an arithmetic number, because the mean of its divisors is an integer number (32030936).

Almost surely, 2^168162393 is an apocalyptic number.

It is an amenable number.

168162393 is a deficient number, since it is larger than the sum of its proper divisors (88085095).

168162393 is an equidigital number, since it uses as much as digits as its factorization.

168162393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8007743.

The product of its digits is 46656, while the sum is 39.

The square root of 168162393 is about 12967.7443296820. The cubic root of 168162393 is about 551.9625676938.

The spelling of 168162393 in words is "one hundred sixty-eight million, one hundred sixty-two thousand, three hundred ninety-three".