168504345 has 12 divisors (see below), whose sum is σ = 292074276. Its totient is φ = 89868960.

The previous prime is 168504337. The next prime is 168504361. The reversal of 168504345 is 543405861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 82682649 + 85821696 = 9093^2 + 9264^2 .

It is not a de Polignac number, because 168504345 - 2³ = 168504337 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 1872226 + ... + 1872315.

It is an arithmetic number, because the mean of its divisors is an integer number (24339523).

Almost surely, 2^168504345 is an apocalyptic number.

168504345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

168504345 is a deficient number, since it is larger than the sum of its proper divisors (123569931).

168504345 is a wasteful number, since it uses less digits than its factorization.

168504345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744552 (or 3744549 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 168504345 is about 12980.9223478149. The cubic root of 168504345 is about 552.3364462005.

The spelling of 168504345 in words is "one hundred sixty-eight million, five hundred four thousand, three hundred forty-five".