1966141 has 4 divisors (see below), whose sum is σ = 2003292. Its totient is φ = 1928992.

The previous prime is 1966127. The next prime is 1966163. The reversal of 1966141 is 1416691.

1966141 is nontrivially palindromic in base 11.

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 894916 + 1071225 = 946^2 + 1035^2 .

It is a cyclic number.

It is not a de Polignac number, because 1966141 - 2⁹ = 1965629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18496 + ... + 18601.

It is an arithmetic number, because the mean of its divisors is an integer number (500823).

2^1966141 is an apocalyptic number.

It is an amenable number.

1966141 is a deficient number, since it is larger than the sum of its proper divisors (37151).

1966141 is an equidigital number, since it uses as much as digits as its factorization.

1966141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37150.

The product of its digits is 1296, while the sum is 28.

The square root of 1966141 is about 1402.1914990471. The cubic root of 1966141 is about 125.2770601145.

The spelling of 1966141 in words is "one million, nine hundred sixty-six thousand, one hundred forty-one".