11521141 has 4 divisors (see below), whose sum is σ = 11623212. Its totient is φ = 11419072.

The previous prime is 11521051. The next prime is 11521187. The reversal of 11521141 is 14112511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6022116 + 5499025 = 2454^2 + 2345^2 .

It is a cyclic number.

It is not a de Polignac number, because 11521141 - 2⁹ = 11520629 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 (11524141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50866 + ... + 51091.

It is an arithmetic number, because the mean of its divisors is an integer number (2905803).

Almost surely, 2^11521141 is an apocalyptic number.

It is an amenable number.

11521141 is a deficient number, since it is larger than the sum of its proper divisors (102071).

11521141 is a wasteful number, since it uses less digits than its factorization.

11521141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102070.

The product of its digits is 40, while the sum is 16.

The square root of 11521141 is about 3394.2806307081. The cubic root of 11521141 is about 225.8561030888.

Adding to 11521141 its reverse (14112511), we get a palindrome (25633652).

The spelling of 11521141 in words is "eleven million, five hundred twenty-one thousand, one hundred forty-one".