163766125 has 16 divisors (see below), whose sum is σ = 205588656. Its totient is φ = 130238400.

The previous prime is 163766093. The next prime is 163766129. The reversal of 163766125 is 521667361.

It can be written as a sum of positive squares in 8 ways, for example, as 2916 + 163763209 = 54^2 + 12797^2 .

It is not a de Polignac number, because 163766125 - 2⁵ = 163766093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163766129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17839 + ... + 25411.

It is an arithmetic number, because the mean of its divisors is an integer number (12849291).

Almost surely, 2^163766125 is an apocalyptic number.

It is an amenable number.

163766125 is a deficient number, since it is larger than the sum of its proper divisors (41822531).

163766125 is an equidigital number, since it uses as much as digits as its factorization.

163766125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7761 (or 7751 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 163766125 is about 12797.1139324459. The cubic root of 163766125 is about 547.1100480770.

The spelling of 163766125 in words is "one hundred sixty-three million, seven hundred sixty-six thousand, one hundred twenty-five".