166025141 has 8 divisors (see below), whose sum is σ = 169015704. Its totient is φ = 163054080.

The previous prime is 166025131. The next prime is 166025143. The reversal of 166025141 is 141520661.

It can be written as a sum of positive squares in 4 ways, for example, as 51984100 + 114041041 = 7210^2 + 10679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166025141 is a prime.

It is a Duffinian number.

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 166025141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166025143) 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 7 ways as a sum of consecutive naturals, for example, 12875 + ... + 22311.

It is an arithmetic number, because the mean of its divisors is an integer number (21126963).

Almost surely, 2^166025141 is an apocalyptic number.

It is an amenable number.

166025141 is a deficient number, since it is larger than the sum of its proper divisors (2990563).

166025141 is an equidigital number, since it uses as much as digits as its factorization.

166025141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9751.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 166025141 is about 12885.0743498049. The cubic root of 166025141 is about 549.6142098968.

The spelling of 166025141 in words is "one hundred sixty-six million, twenty-five thousand, one hundred forty-one".