2193941 has 2 divisors, whose sum is σ = 2193942. Its totient is φ = 2193940.

The previous prime is 2193929. The next prime is 2193943. The reversal of 2193941 is 1493912.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1745041 + 448900 = 1321^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 2193941 - 2¹⁰ = 2192917 is a prime.

It is a super-2 number, since 2×2193941² = 9626754222962, which contains 22 as substring.

Together with 2193943, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2193943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096970 + 1096971.

It is an arithmetic number, because the mean of its divisors is an integer number (1096971).

2^2193941 is an apocalyptic number.

It is an amenable number.

2193941 is a deficient number, since it is larger than the sum of its proper divisors (1).

2193941 is an equidigital number, since it uses as much as digits as its factorization.

2193941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 29.

The square root of 2193941 is about 1481.1958006962. The cubic root of 2193941 is about 129.9396366699.

Subtracting from 2193941 its sum of digits (29), we obtain a palindrome (2193912).

The spelling of 2193941 in words is "two million, one hundred ninety-three thousand, nine hundred forty-one".