168388045 has 8 divisors (see below), whose sum is σ = 230932224. Its totient is φ = 115466064.

The previous prime is 168388039. The next prime is 168388057. The reversal of 168388045 is 540883861.

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

It is not a de Polignac number, because 168388045 - 2²⁷ = 34170317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168387992 and 168388010.

It is a congruent number.

It is an unprimeable number.

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, 2405509 + ... + 2405578.

It is an arithmetic number, because the mean of its divisors is an integer number (28866528).

Almost surely, 2^168388045 is an apocalyptic number.

It is an amenable number.

168388045 is a deficient number, since it is larger than the sum of its proper divisors (62544179).

168388045 is an equidigital number, since it uses as much as digits as its factorization.

168388045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811099.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 168388045 is about 12976.4419237324. The cubic root of 168388045 is about 552.2093446059.

The spelling of 168388045 in words is "one hundred sixty-eight million, three hundred eighty-eight thousand, forty-five".