11141521 has 2 divisors, whose sum is σ = 11141522. Its totient is φ = 11141520.

The previous prime is 11141519. The next prime is 11141527. The reversal of 11141521 is 12514111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8785296 + 2356225 = 2964^2 + 1535^2 .

It is a cyclic number.

It is not a de Polignac number, because 11141521 - 2¹ = 11141519 is a prime.

Together with 11141519, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11141495 and 11141504.

It is not a weakly prime, because it can be changed into another prime (11141527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5570760 + 5570761.

It is an arithmetic number, because the mean of its divisors is an integer number (5570761).

Almost surely, 2^11141521 is an apocalyptic number.

It is an amenable number.

11141521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11141521 is an equidigital number, since it uses as much as digits as its factorization.

11141521 is an evil number, because the sum of its binary digits is even.

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

The square root of 11141521 is about 3337.8916998609. The cubic root of 11141521 is about 223.3477050725.

Adding to 11141521 its reverse (12514111), we get a palindrome (23655632).

The spelling of 11141521 in words is "eleven million, one hundred forty-one thousand, five hundred twenty-one".