1223941 has 2 divisors, whose sum is σ = 1223942. Its totient is φ = 1223940.

The previous prime is 1223939. The next prime is 1223953. The reversal of 1223941 is 1493221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1221025 + 2916 = 1105^2 + 54^2 .

It is an emirp because it is prime and its reverse (1493221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223941 - 2¹ = 1223939 is a prime.

Together with 1223939, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611970 + 611971.

It is an arithmetic number, because the mean of its divisors is an integer number (611971).

2^1223941 is an apocalyptic number.

It is an amenable number.

1223941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223941 is an equidigital number, since it uses as much as digits as its factorization.

1223941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 1223941 is about 1106.3186701850. The cubic root of 1223941 is about 106.9679060586.

The spelling of 1223941 in words is "one million, two hundred twenty-three thousand, nine hundred forty-one".