11845481 has 4 divisors (see below), whose sum is σ = 12542292. Its totient is φ = 11148672.

The previous prime is 11845459. The next prime is 11845499. The reversal of 11845481 is 18454811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18454811 = 223 ⋅82757.

It can be written as a sum of positive squares in 2 ways, for example, as 8904256 + 2941225 = 2984^2 + 1715^2 .

It is a cyclic number.

It is not a de Polignac number, because 11845481 - 2¹⁸ = 11583337 is a prime.

It is a super-2 number, since 2×11845481² = 280630840242722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11805481) 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, 348380 + ... + 348413.

It is an arithmetic number, because the mean of its divisors is an integer number (3135573).

Almost surely, 2^11845481 is an apocalyptic number.

It is an amenable number.

11845481 is a deficient number, since it is larger than the sum of its proper divisors (696811).

11845481 is an equidigital number, since it uses as much as digits as its factorization.

11845481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696810.

The product of its digits is 5120, while the sum is 32.

The square root of 11845481 is about 3441.7264563007. The cubic root of 11845481 is about 227.9559330552.

The spelling of 11845481 in words is "eleven million, eight hundred forty-five thousand, four hundred eighty-one".