11021489 has 2 divisors, whose sum is σ = 11021490. Its totient is φ = 11021488.

The previous prime is 11021473. The next prime is 11021519. The reversal of 11021489 is 98412011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10349089 + 672400 = 3217^2 + 820^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021489 - 2⁴ = 11021473 is a prime.

It is not a weakly prime, because it can be changed into another prime (11021789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510744 + 5510745.

It is an arithmetic number, because the mean of its divisors is an integer number (5510745).

Almost surely, 2^11021489 is an apocalyptic number.

It is an amenable number.

11021489 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021489 is an equidigital number, since it uses as much as digits as its factorization.

11021489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 11021489 is about 3319.8627983698. The cubic root of 11021489 is about 222.5427363939.

The spelling of 11021489 in words is "eleven million, twenty-one thousand, four hundred eighty-nine".