11129959 has 4 divisors (see below), whose sum is σ = 11162200. Its totient is φ = 11097720.

The previous prime is 11129957. The next prime is 11129969. The reversal of 11129959 is 95992111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95992111 = 41 ⋅2341271.

It is a cyclic number.

It is not a de Polignac number, because 11129959 - 2¹ = 11129957 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 (11129957) 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 3 ways as a sum of consecutive naturals, for example, 15597 + ... + 16294.

It is an arithmetic number, because the mean of its divisors is an integer number (2790550).

Almost surely, 2^11129959 is an apocalyptic number.

11129959 is a deficient number, since it is larger than the sum of its proper divisors (32241).

11129959 is an equidigital number, since it uses as much as digits as its factorization.

11129959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32240.

The product of its digits is 7290, while the sum is 37.

The square root of 11129959 is about 3336.1593187376. The cubic root of 11129959 is about 223.2704193964.

The spelling of 11129959 in words is "eleven million, one hundred twenty-nine thousand, nine hundred fifty-nine".