11881135 has 16 divisors (see below), whose sum is σ = 16460352. Its totient is φ = 8064000.

The previous prime is 11881127. The next prime is 11881141. The reversal of 11881135 is 53118811.

It is not a de Polignac number, because 11881135 - 2³ = 11881127 is a prime.

It is a super-2 number, since 2×11881135² = 282322737776450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1855 + ... + 5215.

It is an arithmetic number, because the mean of its divisors is an integer number (1028772).

Almost surely, 2^11881135 is an apocalyptic number.

11881135 is a deficient number, since it is larger than the sum of its proper divisors (4579217).

11881135 is a wasteful number, since it uses less digits than its factorization.

11881135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474.

The product of its digits is 960, while the sum is 28.

The square root of 11881135 is about 3446.9022324400. The cubic root of 11881135 is about 228.1844139985.

Adding to 11881135 its reverse (53118811), we get a palindrome (64999946).

The spelling of 11881135 in words is "eleven million, eight hundred eighty-one thousand, one hundred thirty-five".