11825845 has 4 divisors (see below), whose sum is σ = 14191020. Its totient is φ = 9460672.

The previous prime is 11825843. The next prime is 11825851. The reversal of 11825845 is 54852811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54852811 = 13 ⋅4219447.

It can be written as a sum of positive squares in 2 ways, for example, as 3663396 + 8162449 = 1914^2 + 2857^2 .

It is a cyclic number.

It is not a de Polignac number, because 11825845 - 2¹ = 11825843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11825845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11825843) by changing a digit.

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, 1182580 + ... + 1182589.

It is an arithmetic number, because the mean of its divisors is an integer number (3547755).

Almost surely, 2^11825845 is an apocalyptic number.

It is an amenable number.

11825845 is a deficient number, since it is larger than the sum of its proper divisors (2365175).

11825845 is an equidigital number, since it uses as much as digits as its factorization.

11825845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365174.

The product of its digits is 12800, while the sum is 34.

The square root of 11825845 is about 3438.8726350361. The cubic root of 11825845 is about 227.8299041694.

The spelling of 11825845 in words is "eleven million, eight hundred twenty-five thousand, eight hundred forty-five".