11518441 has 4 divisors (see below), whose sum is σ = 12565584. Its totient is φ = 10471300.

The previous prime is 11518421. The next prime is 11518477. The reversal of 11518441 is 14481511.

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 11518441 - 2⁹ = 11517929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11518411) 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, 523555 + ... + 523576.

It is an arithmetic number, because the mean of its divisors is an integer number (3141396).

Almost surely, 2^11518441 is an apocalyptic number.

11518441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11518441 is a deficient number, since it is larger than the sum of its proper divisors (1047143).

11518441 is a wasteful number, since it uses less digits than its factorization.

11518441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047142.

The product of its digits is 640, while the sum is 25.

The square root of 11518441 is about 3393.8828795349. The cubic root of 11518441 is about 225.8384584498.

Adding to 11518441 its reverse (14481511), we get a palindrome (25999952).

The spelling of 11518441 in words is "eleven million, five hundred eighteen thousand, four hundred forty-one".