168255393 has 8 divisors (see below), whose sum is σ = 236148000. Its totient is φ = 106266528.

The previous prime is 168255379. The next prime is 168255397. The reversal of 168255393 is 393552861.

168255393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 168255393 - 2¹³ = 168247201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (168255397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1475868 + ... + 1475981.

It is an arithmetic number, because the mean of its divisors is an integer number (29518500).

Almost surely, 2^168255393 is an apocalyptic number.

It is an amenable number.

168255393 is a deficient number, since it is larger than the sum of its proper divisors (67892607).

168255393 is a wasteful number, since it uses less digits than its factorization.

168255393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951871.

The product of its digits is 194400, while the sum is 42.

The square root of 168255393 is about 12971.3296542799. The cubic root of 168255393 is about 552.0643008218.

It can be divided in two parts, 1682 and 55393, that added together give a palindrome (57075).

The spelling of 168255393 in words is "one hundred sixty-eight million, two hundred fifty-five thousand, three hundred ninety-three".