1232191 has 4 divisors (see below), whose sum is σ = 1244992. Its totient is φ = 1219392.

The previous prime is 1232183. The next prime is 1232201. The reversal of 1232191 is 1912321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1912321 = 269 ⋅7109.

It is a cyclic number.

It is not a de Polignac number, because 1232191 - 2³ = 1232183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6255 + ... + 6448.

It is an arithmetic number, because the mean of its divisors is an integer number (311248).

2^1232191 is an apocalyptic number.

1232191 is a deficient number, since it is larger than the sum of its proper divisors (12801).

1232191 is an equidigital number, since it uses as much as digits as its factorization.

1232191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12800.

The product of its digits is 108, while the sum is 19.

The square root of 1232191 is about 1110.0409902341. The cubic root of 1232191 is about 107.2077078719.

It can be divided in two parts, 12321 and 91, that multiplied together give a palindrome (1121211).

The spelling of 1232191 in words is "one million, two hundred thirty-two thousand, one hundred ninety-one".