11265209 has 2 divisors, whose sum is σ = 11265210. Its totient is φ = 11265208.

The previous prime is 11265173. The next prime is 11265223. The reversal of 11265209 is 90256211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10368400 + 896809 = 3220^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 11265209 - 2¹² = 11261113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11265299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5632604 + 5632605.

It is an arithmetic number, because the mean of its divisors is an integer number (5632605).

Almost surely, 2^11265209 is an apocalyptic number.

It is an amenable number.

11265209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11265209 is an equidigital number, since it uses as much as digits as its factorization.

11265209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 11265209 is about 3356.3684243539. The cubic root of 11265209 is about 224.1711662071.

The spelling of 11265209 in words is "eleven million, two hundred sixty-five thousand, two hundred nine".