11581106 has 8 divisors (see below), whose sum is σ = 17795484. Its totient is φ = 5649280.

The previous prime is 11581099. The next prime is 11581109. The reversal of 11581106 is 60118511.

It is a happy number.

11581106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9150625 + 2430481 = 3025^2 + 1559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11581109) 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, 70535 + ... + 70698.

Almost surely, 2^11581106 is an apocalyptic number.

11581106 is a deficient number, since it is larger than the sum of its proper divisors (6214378).

11581106 is a wasteful number, since it uses less digits than its factorization.

11581106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141276.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 11581106 is about 3403.1024080976. The cubic root of 11581106 is about 226.2472689759.

Adding to 11581106 its reverse (60118511), we get a palindrome (71699617).

The spelling of 11581106 in words is "eleven million, five hundred eighty-one thousand, one hundred six".