14445139 has 4 divisors (see below), whose sum is σ = 14520960. Its totient is φ = 14369320.

The previous prime is 14445131. The next prime is 14445157. The reversal of 14445139 is 93154441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93154441 = 17 ⋅5479673.

It is a cyclic number.

It is not a de Polignac number, because 14445139 - 2³ = 14445131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14445139.

It is not an unprimeable number, because it can be changed into a prime (14445131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37624 + ... + 38005.

It is an arithmetic number, because the mean of its divisors is an integer number (3630240).

Almost surely, 2^14445139 is an apocalyptic number.

14445139 is a deficient number, since it is larger than the sum of its proper divisors (75821).

14445139 is an equidigital number, since it uses as much as digits as its factorization.

14445139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75820.

The product of its digits is 8640, while the sum is 31.

The square root of 14445139 is about 3800.6761240600. The cubic root of 14445139 is about 243.5420225518.

The spelling of 14445139 in words is "fourteen million, four hundred forty-five thousand, one hundred thirty-nine".