11943445 has 4 divisors (see below), whose sum is σ = 14332140. Its totient is φ = 9554752.

The previous prime is 11943433. The next prime is 11943493. The reversal of 11943445 is 54434911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54434911 = 241 ⋅225871.

It can be written as a sum of positive squares in 2 ways, for example, as 6749604 + 5193841 = 2598^2 + 2279^2 .

It is a cyclic number.

It is not a de Polignac number, because 11943445 - 2⁵ = 11943413 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1194340 + ... + 1194349.

It is an arithmetic number, because the mean of its divisors is an integer number (3583035).

Almost surely, 2^11943445 is an apocalyptic number.

It is an amenable number.

11943445 is a deficient number, since it is larger than the sum of its proper divisors (2388695).

11943445 is an equidigital number, since it uses as much as digits as its factorization.

11943445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388694.

The product of its digits is 8640, while the sum is 31.

The square root of 11943445 is about 3455.9289633903. The cubic root of 11943445 is about 228.5826191508.

The spelling of 11943445 in words is "eleven million, nine hundred forty-three thousand, four hundred forty-five".