11445019 has 2 divisors, whose sum is σ = 11445020. Its totient is φ = 11445018.

The previous prime is 11444999. The next prime is 11445043. The reversal of 11445019 is 91054411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11445019 - 2¹⁹ = 10920731 is a prime.

It is a super-2 number, since 2×11445019² = 261976919820722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11444984 and 11445002.

It is not a weakly prime, because it can be changed into another prime (11445089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5722509 + 5722510.

It is an arithmetic number, because the mean of its divisors is an integer number (5722510).

Almost surely, 2^11445019 is an apocalyptic number.

11445019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11445019 is an equidigital number, since it uses as much as digits as its factorization.

11445019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 11445019 is about 3383.0487729266. The cubic root of 11445019 is about 225.3575812073.

The spelling of 11445019 in words is "eleven million, four hundred forty-five thousand, nineteen".