2236009 has 2 divisors, whose sum is σ = 2236010. Its totient is φ = 2236008.

The previous prime is 2236007. The next prime is 2236049. The reversal of 2236009 is 9006322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2073600 + 162409 = 1440^2 + 403^2 .

It is a cyclic number.

It is not a de Polignac number, because 2236009 - 2¹ = 2236007 is a prime.

Together with 2236007, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2236001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1118004 + 1118005.

It is an arithmetic number, because the mean of its divisors is an integer number (1118005).

2^2236009 is an apocalyptic number.

It is an amenable number.

2236009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2236009 is an equidigital number, since it uses as much as digits as its factorization.

2236009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2236009 is about 1495.3290607756. The cubic root of 2236009 is about 130.7648989160.

The spelling of 2236009 in words is "two million, two hundred thirty-six thousand, nine".