14142239 has 4 divisors (see below), whose sum is σ = 14182656. Its totient is φ = 14101824.

The previous prime is 14142229. The next prime is 14142269. The reversal of 14142239 is 93224141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93224141 = 17 ⋅5483773.

It is a cyclic number.

It is not a de Polignac number, because 14142239 - 2⁴ = 14142223 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 (14142229) 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, 19679 + ... + 20384.

It is an arithmetic number, because the mean of its divisors is an integer number (3545664).

Almost surely, 2^14142239 is an apocalyptic number.

14142239 is a deficient number, since it is larger than the sum of its proper divisors (40417).

14142239 is an equidigital number, since it uses as much as digits as its factorization.

14142239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40416.

The product of its digits is 1728, while the sum is 26.

The square root of 14142239 is about 3760.6168377010. The cubic root of 14142239 is about 241.8277067472.

The spelling of 14142239 in words is "fourteen million, one hundred forty-two thousand, two hundred thirty-nine".