168240125 has 8 divisors (see below), whose sum is σ = 209963832. Its totient is φ = 134592000.

The previous prime is 168240113. The next prime is 168240133. The reversal of 168240125 is 521042861.

It can be written as a sum of positive squares in 4 ways, for example, as 4937284 + 163302841 = 2222^2 + 12779^2 .

It is not a de Polignac number, because 168240125 - 2¹⁰ = 168239101 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 672836 + ... + 673085.

It is an arithmetic number, because the mean of its divisors is an integer number (26245479).

Almost surely, 2^168240125 is an apocalyptic number.

It is an amenable number.

168240125 is a deficient number, since it is larger than the sum of its proper divisors (41723707).

168240125 is an equidigital number, since it uses as much as digits as its factorization.

168240125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345936 (or 1345926 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 168240125 is about 12970.7411122110. The cubic root of 168240125 is about 552.0476016588.

Adding to 168240125 its reverse (521042861), we get a palindrome (689282986).

The spelling of 168240125 in words is "one hundred sixty-eight million, two hundred forty thousand, one hundred twenty-five".