2299509 has 12 divisors (see below), whose sum is σ = 3444896. Its totient is φ = 1532844.

The previous prime is 2299499. The next prime is 2299519. The reversal of 2299509 is 9059922.

2299509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2299499) and next prime (2299519).

It is not a de Polignac number, because 2299509 - 2¹⁷ = 2168437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2299519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4489 + ... + 4974.

2^2299509 is an apocalyptic number.

It is an amenable number.

2299509 is a deficient number, since it is larger than the sum of its proper divisors (1145387).

2299509 is an frugal number, since it uses more digits than its factorization.

2299509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9478 (or 9466 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 2299509 is about 1516.4132022638. The cubic root of 2299509 is about 131.9912184241.

The spelling of 2299509 in words is "two million, two hundred ninety-nine thousand, five hundred nine".