1321093 has 2 divisors, whose sum is σ = 1321094. Its totient is φ = 1321092.

The previous prime is 1321079. The next prime is 1321109. The reversal of 1321093 is 3901231.

1321093 is nontrivially palindromic in base 8.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 777924 + 543169 = 882^2 + 737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321093 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660546 + 660547.

It is an arithmetic number, because the mean of its divisors is an integer number (660547).

2^1321093 is an apocalyptic number.

It is an amenable number.

1321093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321093 is an equidigital number, since it uses as much as digits as its factorization.

1321093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1321093 is about 1149.3880980765. The cubic root of 1321093 is about 109.7263999359.

It can be divided in two parts, 132 and 1093, that added together give a triangular number (1225 = T₄₉).

The spelling of 1321093 in words is "one million, three hundred twenty-one thousand, ninety-three".