11135813 has 8 divisors (see below), whose sum is σ = 12075000. Its totient is φ = 10208448.

The previous prime is 11135809. The next prime is 11135827. The reversal of 11135813 is 31853111.

It can be written as a sum of positive squares in 4 ways, for example, as 1295044 + 9840769 = 1138^2 + 3137^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11135813 - 2² = 11135809 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 (11135863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938 + ... + 4811.

It is an arithmetic number, because the mean of its divisors is an integer number (1509375).

Almost surely, 2^11135813 is an apocalyptic number.

11135813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11135813 is a deficient number, since it is larger than the sum of its proper divisors (939187).

11135813 is a wasteful number, since it uses less digits than its factorization.

11135813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911.

The product of its digits is 360, while the sum is 23.

The square root of 11135813 is about 3337.0365595840. The cubic root of 11135813 is about 223.3095568857.

Adding to 11135813 its reverse (31853111), we get a palindrome (42988924).

The spelling of 11135813 in words is "eleven million, one hundred thirty-five thousand, eight hundred thirteen".