14221731 has 8 divisors (see below), whose sum is σ = 19011664. Its totient is φ = 9456480.

The previous prime is 14221721. The next prime is 14221769. The reversal of 14221731 is 13712241.

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

It is not a de Polignac number, because 14221731 - 2⁵ = 14221699 is a prime.

It is a super-2 number, since 2×14221731² = 404515265272722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14221698 and 14221707.

It is not an unprimeable number, because it can be changed into a prime (14221721) 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, 4780 + ... + 7161.

It is an arithmetic number, because the mean of its divisors is an integer number (2376458).

Almost surely, 2^14221731 is an apocalyptic number.

14221731 is a deficient number, since it is larger than the sum of its proper divisors (4789933).

14221731 is a wasteful number, since it uses less digits than its factorization.

14221731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12341.

The product of its digits is 336, while the sum is 21.

The square root of 14221731 is about 3771.1710382851. The cubic root of 14221731 is about 242.2799562725.

Adding to 14221731 its reverse (13712241), we get a palindrome (27933972).

The spelling of 14221731 in words is "fourteen million, two hundred twenty-one thousand, seven hundred thirty-one".