11283521 has 2 divisors, whose sum is σ = 11283522. Its totient is φ = 11283520.

The previous prime is 11283497. The next prime is 11283539. The reversal of 11283521 is 12538211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11022400 + 261121 = 3320^2 + 511^2 .

It is a cyclic number.

It is not a de Polignac number, because 11283521 - 2²² = 7089217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11283551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5641760 + 5641761.

It is an arithmetic number, because the mean of its divisors is an integer number (5641761).

Almost surely, 2^11283521 is an apocalyptic number.

It is an amenable number.

11283521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11283521 is an equidigital number, since it uses as much as digits as its factorization.

11283521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 23.

The square root of 11283521 is about 3359.0952650974. The cubic root of 11283521 is about 224.2925665325.

The spelling of 11283521 in words is "eleven million, two hundred eighty-three thousand, five hundred twenty-one".