10219009 has 2 divisors, whose sum is σ = 10219010. Its totient is φ = 10219008.

The previous prime is 10219003. The next prime is 10219031. The reversal of 10219009 is 90091201.

10219009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (10219031) can be obtained adding 10219009 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10080625 + 138384 = 3175^2 + 372^2 .

It is an emirp because it is prime and its reverse (90091201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10219009 - 2⁹ = 10218497 is a prime.

It is not a weakly prime, because it can be changed into another prime (10219003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5109504 + 5109505.

It is an arithmetic number, because the mean of its divisors is an integer number (5109505).

Almost surely, 2^10219009 is an apocalyptic number.

It is an amenable number.

10219009 is a deficient number, since it is larger than the sum of its proper divisors (1).

10219009 is an equidigital number, since it uses as much as digits as its factorization.

10219009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 10219009 is about 3196.7184736852. The cubic root of 10219009 is about 217.0049267288.

The spelling of 10219009 in words is "ten million, two hundred nineteen thousand, nine".