1164243 has 4 divisors (see below), whose sum is σ = 1552328. Its totient is φ = 776160.

The previous prime is 1164221. The next prime is 1164253. The reversal of 1164243 is 3424611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1164243 - 2⁶ = 1164179 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1164203) 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 in 3 ways as a sum of consecutive naturals, for example, 194038 + ... + 194043.

It is an arithmetic number, because the mean of its divisors is an integer number (388082).

2^1164243 is an apocalyptic number.

1164243 is a deficient number, since it is larger than the sum of its proper divisors (388085).

1164243 is an equidigital number, since it uses as much as digits as its factorization.

1164243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388084.

The product of its digits is 576, while the sum is 21.

The square root of 1164243 is about 1079.0009267837. Note that the first 3 decimals coincide. The cubic root of 1164243 is about 105.1997106114.

Adding to 1164243 its reverse (3424611), we get a palindrome (4588854).

The spelling of 1164243 in words is "one million, one hundred sixty-four thousand, two hundred forty-three".