1321193 has 2 divisors, whose sum is σ = 1321194. Its totient is φ = 1321192.

The previous prime is 1321171. The next prime is 1321213. The reversal of 1321193 is 3911231.

It is an a-pointer prime, because the next prime (1321213) can be obtained adding 1321193 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 994009 + 327184 = 997^2 + 572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1321163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660596 + 660597.

It is an arithmetic number, because the mean of its divisors is an integer number (660597).

2^1321193 is an apocalyptic number.

It is an amenable number.

1321193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321193 is an equidigital number, since it uses as much as digits as its factorization.

1321193 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1321193 is about 1149.4315986608. The cubic root of 1321193 is about 109.7291684422.

The spelling of 1321193 in words is "one million, three hundred twenty-one thousand, one hundred ninety-three".