11481771 has 16 divisors (see below), whose sum is σ = 17869824. Its totient is φ = 6420864.

The previous prime is 11481737. The next prime is 11481773. The reversal of 11481771 is 17718411.

It is not a de Polignac number, because 11481771 - 2⁶ = 11481707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11481773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4830 + ... + 6803.

It is an arithmetic number, because the mean of its divisors is an integer number (1116864).

Almost surely, 2^11481771 is an apocalyptic number.

11481771 is a deficient number, since it is larger than the sum of its proper divisors (6388053).

11481771 is a wasteful number, since it uses less digits than its factorization.

11481771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11690.

The product of its digits is 1568, while the sum is 30.

The square root of 11481771 is about 3388.4762062024. The cubic root of 11481771 is about 225.5985446124.

The spelling of 11481771 in words is "eleven million, four hundred eighty-one thousand, seven hundred seventy-one".