11240521 has 2 divisors, whose sum is σ = 11240522.
Its totient is φ = 11240520.
The previous prime is 11240483. The next prime is 11240527. The reversal of 11240521 is 12504211.
Adding to 11240521 its reverse (12504211), we get a palindrome (23744732).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 9455625 + 1784896 = 3075^2 + 1336^2
It is a cyclic number.
It is not a de Polignac number, because 11240521 - 27 = 11240393 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 11240495 and 11240504.
It is not a weakly prime, because it can be changed into another prime (11240527) by changing a digit.
It is a good prime.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5620260 + 5620261.
It is an arithmetic number, because the mean of its divisors is an integer number (5620261).
Almost surely, 211240521 is an apocalyptic number.
It is an amenable number.
11240521 is a deficient number, since it is larger than the sum of its proper divisors (1).
11240521 is an equidigital number, since it uses as much as digits as its factorization.
11240521 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 80, while the sum is 16.
The square root of 11240521 is about 3352.6886225834.
The cubic root of 11240521 is about 224.0072874436.
The spelling of 11240521 in words is "eleven million, two hundred forty thousand, five hundred twenty-one".