14340509 has 4 divisors (see below), whose sum is σ = 14542560. Its totient is φ = 14138460.

The previous prime is 14340493. The next prime is 14340517. The reversal of 14340509 is 90504341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90504341 = 4799 ⋅18859.

It is a cyclic number.

It is not a de Polignac number, because 14340509 - 2⁴ = 14340493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14340589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100919 + ... + 101060.

It is an arithmetic number, because the mean of its divisors is an integer number (3635640).

Almost surely, 2^14340509 is an apocalyptic number.

It is an amenable number.

14340509 is a deficient number, since it is larger than the sum of its proper divisors (202051).

14340509 is an equidigital number, since it uses as much as digits as its factorization.

14340509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202050.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 14340509 is about 3786.8864519550. The cubic root of 14340509 is about 242.9525837925.

The spelling of 14340509 in words is "fourteen million, three hundred forty thousand, five hundred nine".