11481871 has 4 divisors (see below), whose sum is σ = 12086200. Its totient is φ = 10877544.

The previous prime is 11481863. The next prime is 11481893. The reversal of 11481871 is 17818411.

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

It is a cyclic number.

It is not a de Polignac number, because 11481871 - 2³ = 11481863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11481571) 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, 302136 + ... + 302173.

It is an arithmetic number, because the mean of its divisors is an integer number (3021550).

Almost surely, 2^11481871 is an apocalyptic number.

11481871 is a deficient number, since it is larger than the sum of its proper divisors (604329).

11481871 is an equidigital number, since it uses as much as digits as its factorization.

11481871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604328.

The product of its digits is 1792, while the sum is 31.

The square root of 11481871 is about 3388.4909620656. The cubic root of 11481871 is about 225.5991995575.

The spelling of 11481871 in words is "eleven million, four hundred eighty-one thousand, eight hundred seventy-one".