11812445 has 4 divisors (see below), whose sum is σ = 14174940. Its totient is φ = 9449952.

The previous prime is 11812403. The next prime is 11812459. The reversal of 11812445 is 54421811.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8168164 + 3644281 = 2858^2 + 1909^2 .

It is a cyclic number.

It is not a de Polignac number, because 11812445 - 2²⁰ = 10763869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181240 + ... + 1181249.

It is an arithmetic number, because the mean of its divisors is an integer number (3543735).

Almost surely, 2^11812445 is an apocalyptic number.

It is an amenable number.

11812445 is a deficient number, since it is larger than the sum of its proper divisors (2362495).

11812445 is an equidigital number, since it uses as much as digits as its factorization.

11812445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362494.

The product of its digits is 1280, while the sum is 26.

The square root of 11812445 is about 3436.9237698849. The cubic root of 11812445 is about 227.7438194247.

The spelling of 11812445 in words is "eleven million, eight hundred twelve thousand, four hundred forty-five".