1093221 has 6 divisors (see below), whose sum is σ = 1579110. Its totient is φ = 728808.

The previous prime is 1093201. The next prime is 1093223. The reversal of 1093221 is 1223901.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1028196 + 65025 = 1014^2 + 255^2 .

It is not a de Polignac number, because 1093221 - 2¹¹ = 1091173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1093194 and 1093203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1093223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60726 + ... + 60743.

It is an arithmetic number, because the mean of its divisors is an integer number (263185).

2^1093221 is an apocalyptic number.

It is an amenable number.

1093221 is a deficient number, since it is larger than the sum of its proper divisors (485889).

1093221 is a wasteful number, since it uses less digits than its factorization.

1093221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121475 (or 121472 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1093221 is about 1045.5720922060. The cubic root of 1093221 is about 103.0155190743.

The spelling of 1093221 in words is "one million, ninety-three thousand, two hundred twenty-one".