1935221 has 2 divisors, whose sum is σ = 1935222. Its totient is φ = 1935220.

The previous prime is 1935217. The next prime is 1935239. The reversal of 1935221 is 1225391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1144900 + 790321 = 1070^2 + 889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1935221 - 2² = 1935217 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1935251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967610 + 967611.

It is an arithmetic number, because the mean of its divisors is an integer number (967611).

2^1935221 is an apocalyptic number.

It is an amenable number.

1935221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1935221 is an equidigital number, since it uses as much as digits as its factorization.

1935221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 1935221 is about 1391.1222088659. The cubic root of 1935221 is about 124.6168749211.

The spelling of 1935221 in words is "one million, nine hundred thirty-five thousand, two hundred twenty-one".