168454545 has 16 divisors (see below), whose sum is σ = 308031360. Its totient is φ = 77007744.

The previous prime is 168454537. The next prime is 168454577. The reversal of 168454545 is 545454861.

It is not a de Polignac number, because 168454545 - 2³ = 168454537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168454497 and 168454506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 802060 + ... + 802269.

It is an arithmetic number, because the mean of its divisors is an integer number (19251960).

Almost surely, 2^168454545 is an apocalyptic number.

168454545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

168454545 is a deficient number, since it is larger than the sum of its proper divisors (139576815).

168454545 is a wasteful number, since it uses less digits than its factorization.

168454545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604344.

The product of its digits is 384000, while the sum is 42.

The square root of 168454545 is about 12979.0040064714. The cubic root of 168454545 is about 552.2820280880.

The spelling of 168454545 in words is "one hundred sixty-eight million, four hundred fifty-four thousand, five hundred forty-five".