1191353 has 2 divisors, whose sum is σ = 1191354. Its totient is φ = 1191352.

The previous prime is 1191347. The next prime is 1191373. The reversal of 1191353 is 3531911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 840889 + 350464 = 917^2 + 592^2 .

It is an emirp because it is prime and its reverse (3531911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1191353 - 2⁸ = 1191097 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1191313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 595676 + 595677.

It is an arithmetic number, because the mean of its divisors is an integer number (595677).

2^1191353 is an apocalyptic number.

It is an amenable number.

1191353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1191353 is an equidigital number, since it uses as much as digits as its factorization.

1191353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 405, while the sum is 23.

The square root of 1191353 is about 1091.4911818242. The cubic root of 1191353 is about 106.0099966839.

The spelling of 1191353 in words is "one million, one hundred ninety-one thousand, three hundred fifty-three".