168044845 has 8 divisors (see below), whose sum is σ = 201894264. Its totient is φ = 134275584.

The previous prime is 168044839. The next prime is 168044867. The reversal of 168044845 is 548440861.

It can be written as a sum of positive squares in 4 ways, for example, as 22553001 + 145491844 = 4749^2 + 12062^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 168044845 - 2¹⁵ = 168012077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168044798 and 168044807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15324 + ... + 23893.

It is an arithmetic number, because the mean of its divisors is an integer number (25236783).

Almost surely, 2^168044845 is an apocalyptic number.

It is an amenable number.

168044845 is a deficient number, since it is larger than the sum of its proper divisors (33849419).

168044845 is an equidigital number, since it uses as much as digits as its factorization.

168044845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40079.

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 168044845 is about 12963.2112148186. The cubic root of 168044845 is about 551.8339277157.

The spelling of 168044845 in words is "one hundred sixty-eight million, forty-four thousand, eight hundred forty-five".