14140639 has 2 divisors, whose sum is σ = 14140640. Its totient is φ = 14140638.

The previous prime is 14140631. The next prime is 14140667. The reversal of 14140639 is 93604141.

It is an a-pointer prime, because the next prime (14140667) can be obtained adding 14140639 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14140639 - 2³ = 14140631 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14140631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7070319 + 7070320.

It is an arithmetic number, because the mean of its divisors is an integer number (7070320).

Almost surely, 2^14140639 is an apocalyptic number.

14140639 is a deficient number, since it is larger than the sum of its proper divisors (1).

14140639 is an equidigital number, since it uses as much as digits as its factorization.

14140639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 14140639 is about 3760.4041006254. The cubic root of 14140639 is about 241.8185865760.

The spelling of 14140639 in words is "fourteen million, one hundred forty thousand, six hundred thirty-nine".