11579121 has 6 divisors (see below), whose sum is σ = 16725410. Its totient is φ = 7719408.

The previous prime is 11579111. The next prime is 11579123. The reversal of 11579121 is 12197511.

It can be written as a sum of positive squares in only one way, i.e., 8208225 + 3370896 = 2865^2 + 1836^2 .

It is not a de Polignac number, because 11579121 - 2¹⁷ = 11448049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11579123) 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 5 ways as a sum of consecutive naturals, for example, 643276 + ... + 643293.

Almost surely, 2^11579121 is an apocalyptic number.

It is an amenable number.

11579121 is a deficient number, since it is larger than the sum of its proper divisors (5146289).

11579121 is a wasteful number, since it uses less digits than its factorization.

11579121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286575 (or 1286572 counting only the distinct ones).

The product of its digits is 630, while the sum is 27.

The square root of 11579121 is about 3402.8107499536. The cubic root of 11579121 is about 226.2343419869.

The spelling of 11579121 in words is "eleven million, five hundred seventy-nine thousand, one hundred twenty-one".