166182125 has 8 divisors (see below), whose sum is σ = 207395448. Its totient is φ = 132945600.

The previous prime is 166182101. The next prime is 166182131. The reversal of 166182125 is 521281661.

It can be written as a sum of positive squares in 4 ways, for example, as 21557449 + 144624676 = 4643^2 + 12026^2 .

It is not a de Polignac number, because 166182125 - 2¹² = 166178029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 166182091 and 166182100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664604 + ... + 664853.

It is an arithmetic number, because the mean of its divisors is an integer number (25924431).

Almost surely, 2^166182125 is an apocalyptic number.

It is an amenable number.

166182125 is a deficient number, since it is larger than the sum of its proper divisors (41213323).

166182125 is an equidigital number, since it uses as much as digits as its factorization.

166182125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329472 (or 1329462 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 166182125 is about 12891.1646099179. The cubic root of 166182125 is about 549.7873833829.

The spelling of 166182125 in words is "one hundred sixty-six million, one hundred eighty-two thousand, one hundred twenty-five".