11174521 has 2 divisors, whose sum is σ = 11174522. Its totient is φ = 11174520.

The previous prime is 11174519. The next prime is 11174533. The reversal of 11174521 is 12547111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11148921 + 25600 = 3339^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 11174521 - 2¹ = 11174519 is a prime.

Together with 11174519, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11174492 and 11174501.

It is not a weakly prime, because it can be changed into another prime (11174561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5587260 + 5587261.

It is an arithmetic number, because the mean of its divisors is an integer number (5587261).

Almost surely, 2^11174521 is an apocalyptic number.

It is an amenable number.

11174521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11174521 is an equidigital number, since it uses as much as digits as its factorization.

11174521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 280, while the sum is 22.

The square root of 11174521 is about 3342.8312850038. The cubic root of 11174521 is about 223.5679984347.

The spelling of 11174521 in words is "eleven million, one hundred seventy-four thousand, five hundred twenty-one".