1944133 has 2 divisors, whose sum is σ = 1944134. Its totient is φ = 1944132.

The previous prime is 1944127. The next prime is 1944143. The reversal of 1944133 is 3314491.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1399489 + 544644 = 1183^2 + 738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1944133 is a prime.

1944133 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1944098 and 1944107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1944113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972066 + 972067.

It is an arithmetic number, because the mean of its divisors is an integer number (972067).

2^1944133 is an apocalyptic number.

It is an amenable number.

1944133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1944133 is an equidigital number, since it uses as much as digits as its factorization.

1944133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 1944133 is about 1394.3216988916. The cubic root of 1944133 is about 124.8078755234.

The spelling of 1944133 in words is "one million, nine hundred forty-four thousand, one hundred thirty-three".