14072309 has 4 divisors (see below), whose sum is σ = 14399616. Its totient is φ = 13745004.

The previous prime is 14072291. The next prime is 14072327. The reversal of 14072309 is 90327041.

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.

It is an interprime number because it is at equal distance from previous prime (14072291) and next prime (14072327).

It is a cyclic number.

It is not a de Polignac number, because 14072309 - 2⁸ = 14072053 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 (14072329) 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, 163589 + ... + 163674.

It is an arithmetic number, because the mean of its divisors is an integer number (3599904).

Almost surely, 2^14072309 is an apocalyptic number.

It is an amenable number.

14072309 is a deficient number, since it is larger than the sum of its proper divisors (327307).

14072309 is an equidigital number, since it uses as much as digits as its factorization.

14072309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327306.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 14072309 is about 3751.3076386775. The cubic root of 14072309 is about 241.4284545025.

The spelling of 14072309 in words is "fourteen million, seventy-two thousand, three hundred nine".