11848561 has 4 divisors (see below), whose sum is σ = 11867632. Its totient is φ = 11829492.

The previous prime is 11848553. The next prime is 11848589. The reversal of 11848561 is 16584811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11848561 - 2³ = 11848553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11848531) 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, 8571 + ... + 9856.

It is an arithmetic number, because the mean of its divisors is an integer number (2966908).

Almost surely, 2^11848561 is an apocalyptic number.

It is an amenable number.

11848561 is a deficient number, since it is larger than the sum of its proper divisors (19071).

11848561 is an equidigital number, since it uses as much as digits as its factorization.

11848561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19070.

The product of its digits is 7680, while the sum is 34.

The square root of 11848561 is about 3442.1738770725. The cubic root of 11848561 is about 227.9756886461.

The spelling of 11848561 in words is "eleven million, eight hundred forty-eight thousand, five hundred sixty-one".