11133405 has 12 divisors (see below), whose sum is σ = 19297980. Its totient is φ = 5937792.

The previous prime is 11133379. The next prime is 11133413. The reversal of 11133405 is 50433111.

It can be written as a sum of positive squares in 2 ways, for example, as 8538084 + 2595321 = 2922^2 + 1611^2 .

It is not a de Polignac number, because 11133405 - 2¹¹ = 11131357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123660 + ... + 123749.

It is an arithmetic number, because the mean of its divisors is an integer number (1608165).

Almost surely, 2^11133405 is an apocalyptic number.

11133405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11133405 is a deficient number, since it is larger than the sum of its proper divisors (8164575).

11133405 is a wasteful number, since it uses less digits than its factorization.

11133405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247420 (or 247417 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 11133405 is about 3336.6757409134. The cubic root of 11133405 is about 223.2934596273.

Adding to 11133405 its reverse (50433111), we get a palindrome (61566516).

The spelling of 11133405 in words is "eleven million, one hundred thirty-three thousand, four hundred five".