11172449 has 4 divisors (see below), whose sum is σ = 11182020. Its totient is φ = 11162880.

The previous prime is 11172443. The next prime is 11172463. The reversal of 11172449 is 94427111.

11172449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94427111 = 149 ⋅633739.

It can be written as a sum of positive squares in 2 ways, for example, as 1281424 + 9891025 = 1132^2 + 3145^2 .

It is a cyclic number.

It is not a de Polignac number, because 11172449 - 2⁸ = 11172193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11172443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2744 + ... + 5465.

It is an arithmetic number, because the mean of its divisors is an integer number (2795505).

Almost surely, 2^11172449 is an apocalyptic number.

It is an amenable number.

11172449 is a deficient number, since it is larger than the sum of its proper divisors (9571).

11172449 is an equidigital number, since it uses as much as digits as its factorization.

11172449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9570.

The product of its digits is 2016, while the sum is 29.

The square root of 11172449 is about 3342.5213537089. The cubic root of 11172449 is about 223.5541794524.

The spelling of 11172449 in words is "eleven million, one hundred seventy-two thousand, four hundred forty-nine".