1211393 has 2 divisors, whose sum is σ = 1211394. Its totient is φ = 1211392.

The previous prime is 1211389. The next prime is 1211407. The reversal of 1211393 is 3931121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 659344 + 552049 = 812^2 + 743^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211393 - 2² = 1211389 is a prime.

It is a super-3 number, since 3×1211393³ = 5333059561298746371, which contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1211303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605696 + 605697.

It is an arithmetic number, because the mean of its divisors is an integer number (605697).

2^1211393 is an apocalyptic number.

It is an amenable number.

1211393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211393 is an equidigital number, since it uses as much as digits as its factorization.

1211393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 20.

The square root of 1211393 is about 1100.6329996870. The cubic root of 1211393 is about 106.6011001134.

The spelling of 1211393 in words is "one million, two hundred eleven thousand, three hundred ninety-three".