14021287 has 8 divisors (see below), whose sum is σ = 16180736. Its totient is φ = 11900952.

The previous prime is 14021281. The next prime is 14021299. The reversal of 14021287 is 78212041.

It is a happy number.

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

It is not a de Polignac number, because 14021287 - 2³ = 14021279 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 (14021281) 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, 9003 + ... + 10444.

It is an arithmetic number, because the mean of its divisors is an integer number (2022592).

Almost surely, 2^14021287 is an apocalyptic number.

14021287 is a deficient number, since it is larger than the sum of its proper divisors (2159449).

14021287 is a wasteful number, since it uses less digits than its factorization.

14021287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19557.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 14021287 is about 3744.5009013218. The cubic root of 14021287 is about 241.1363186018.

The spelling of 14021287 in words is "fourteen million, twenty-one thousand, two hundred eighty-seven".