166403141 has 8 divisors (see below), whose sum is σ = 167364120. Its totient is φ = 165445632.

The previous prime is 166403129. The next prime is 166403173. The reversal of 166403141 is 141304661.

166403141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 894916 + 165508225 = 946^2 + 12865^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 166403141 - 2¹⁴ = 166386757 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 166403141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166403101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216005 + ... + 216773.

It is an arithmetic number, because the mean of its divisors is an integer number (20920515).

Almost surely, 2^166403141 is an apocalyptic number.

It is an amenable number.

166403141 is a deficient number, since it is larger than the sum of its proper divisors (960979).

166403141 is an equidigital number, since it uses as much as digits as its factorization.

166403141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 166403141 is about 12899.7341445473. The cubic root of 166403141 is about 550.0310076182.

The spelling of 166403141 in words is "one hundred sixty-six million, four hundred three thousand, one hundred forty-one".