166148125 has 60 divisors (see below), whose sum is σ = 247217740. Its totient is φ = 111540000.

The previous prime is 166148117. The next prime is 166148153. The reversal of 166148125 is 521841661.

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.

It can be written as a sum of positive squares in 10 ways, for example, as 131125401 + 35022724 = 11451^2 + 5918^2 .

It is not a de Polignac number, because 166148125 - 2³ = 166148117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 12780619 + ... + 12780631.

Almost surely, 2^166148125 is an apocalyptic number.

It is an amenable number.

166148125 is a deficient number, since it is larger than the sum of its proper divisors (81069615).

166148125 is an frugal number, since it uses more digits than its factorization.

166148125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 29 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 166148125 is about 12889.8458097838. The cubic root of 166148125 is about 549.7498862775.

Adding to 166148125 its reverse (521841661), we get a palindrome (687989786).

The spelling of 166148125 in words is "one hundred sixty-six million, one hundred forty-eight thousand, one hundred twenty-five".