166007141 has 4 divisors (see below), whose sum is σ = 166719852. Its totient is φ = 165294432.

The previous prime is 166007129. The next prime is 166007189. The reversal of 166007141 is 141700661.

166007141 = 349² + 350² + ... + 814².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75186241 + 90820900 = 8671^2 + 9530^2 .

It is a cyclic number.

It is not a de Polignac number, because 166007141 - 2¹⁴ = 165990757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166007141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166003141) 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 3 ways as a sum of consecutive naturals, for example, 356006 + ... + 356471.

It is an arithmetic number, because the mean of its divisors is an integer number (41679963).

Almost surely, 2^166007141 is an apocalyptic number.

It is an amenable number.

166007141 is a deficient number, since it is larger than the sum of its proper divisors (712711).

166007141 is an equidigital number, since it uses as much as digits as its factorization.

166007141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712710.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 166007141 is about 12884.3758482901. The cubic root of 166007141 is about 549.5943466133.

The spelling of 166007141 in words is "one hundred sixty-six million, seven thousand, one hundred forty-one".