1966241 has 2 divisors, whose sum is σ = 1966242. Its totient is φ = 1966240.

The previous prime is 1966219. The next prime is 1966259. The reversal of 1966241 is 1426691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1960000 + 6241 = 1400^2 + 79^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1966241 is a prime.

It is a super-2 number, since 2×1966241² = 7732207340162, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1966841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983120 + 983121.

It is an arithmetic number, because the mean of its divisors is an integer number (983121).

2^1966241 is an apocalyptic number.

It is an amenable number.

1966241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1966241 is an equidigital number, since it uses as much as digits as its factorization.

1966241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 1966241 is about 1402.2271570612. The cubic root of 1966241 is about 125.2791839862.

It can be divided in two parts, 196 and 6241, that multiplied together give a square (1223236 = 1106²).

The spelling of 1966241 in words is "one million, nine hundred sixty-six thousand, two hundred forty-one".