14091639 has 8 divisors (see below), whose sum is σ = 19395072. Its totient is φ = 9091320.

The previous prime is 14091631. The next prime is 14091661. The reversal of 14091639 is 93619041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14091639 - 2³ = 14091631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14091631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75669 + ... + 75854.

It is an arithmetic number, because the mean of its divisors is an integer number (2424384).

Almost surely, 2^14091639 is an apocalyptic number.

14091639 is a deficient number, since it is larger than the sum of its proper divisors (5303433).

14091639 is a wasteful number, since it uses less digits than its factorization.

14091639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151557.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 14091639 is about 3753.8831894453. The cubic root of 14091639 is about 241.5389475483.

The spelling of 14091639 in words is "fourteen million, ninety-one thousand, six hundred thirty-nine".