11172443 has 2 divisors, whose sum is σ = 11172444. Its totient is φ = 11172442.

The previous prime is 11172419. The next prime is 11172463. The reversal of 11172443 is 34427111.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (34427111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11172443 - 2⁶ = 11172379 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11172463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5586221 + 5586222.

It is an arithmetic number, because the mean of its divisors is an integer number (5586222).

Almost surely, 2^11172443 is an apocalyptic number.

11172443 is a deficient number, since it is larger than the sum of its proper divisors (1).

11172443 is an equidigital number, since it uses as much as digits as its factorization.

11172443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 23.

The square root of 11172443 is about 3342.5204561827. The cubic root of 11172443 is about 223.5541394335.

Adding to 11172443 its reverse (34427111), we get a palindrome (45599554).

The spelling of 11172443 in words is "eleven million, one hundred seventy-two thousand, four hundred forty-three".