14100391 has 4 divisors (see below), whose sum is σ = 14237392. Its totient is φ = 13963392.

The previous prime is 14100379. The next prime is 14100397. The reversal of 14100391 is 19300141.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19300141 = 7 ⋅2757163.

It is a cyclic number.

It is not a de Polignac number, because 14100391 - 2⁷ = 14100263 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 (14100397) 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, 68346 + ... + 68551.

It is an arithmetic number, because the mean of its divisors is an integer number (3559348).

Almost surely, 2^14100391 is an apocalyptic number.

14100391 is a deficient number, since it is larger than the sum of its proper divisors (137001).

14100391 is a wasteful number, since it uses less digits than its factorization.

14100391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137000.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 14100391 is about 3755.0487347037. The cubic root of 14100391 is about 241.5889420019.

The spelling of 14100391 in words is "fourteen million, one hundred thousand, three hundred ninety-one".