168490125 has 84 divisors (see below), whose sum is σ = 322771644. Its totient is φ = 87771600.

The previous prime is 168490123. The next prime is 168490163. The reversal of 168490125 is 521094861.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

168490125 is a `hidden beast` number, since 168 + 490 + 1 + 2 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5391684 + 163098441 = 2322^2 + 12771^2 .

It is not a de Polignac number, because 168490125 - 2¹ = 168490123 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 168490125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168490121) by changing a digit.

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 83 ways as a sum of consecutive naturals, for example, 3918354 + ... + 3918396.

Almost surely, 2^168490125 is an apocalyptic number.

168490125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

168490125 is a deficient number, since it is larger than the sum of its proper divisors (154281519).

168490125 is an frugal number, since it uses more digits than its factorization.

168490125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 168490125 is about 12980.3746093863. The cubic root of 168490125 is about 552.3209086285.

It can be divided in two parts, 1684 and 90125, that added together give a square (91809 = 303²).

The spelling of 168490125 in words is "one hundred sixty-eight million, four hundred ninety thousand, one hundred twenty-five".