14220631 has 2 divisors, whose sum is σ = 14220632. Its totient is φ = 14220630.

The previous prime is 14220629. The next prime is 14220667. The reversal of 14220631 is 13602241.

14220631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14220631 - 2¹ = 14220629 is a prime.

It is a super-2 number, since 2×14220631² = 404452692076322, which contains 22 as substring.

Together with 14220629, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 14220599 and 14220608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14220611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7110315 + 7110316.

It is an arithmetic number, because the mean of its divisors is an integer number (7110316).

Almost surely, 2^14220631 is an apocalyptic number.

14220631 is a deficient number, since it is larger than the sum of its proper divisors (1).

14220631 is an equidigital number, since it uses as much as digits as its factorization.

14220631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 14220631 is about 3771.0251921725. The cubic root of 14220631 is about 242.2737096156.

Adding to 14220631 its reverse (13602241), we get a palindrome (27822872).

The spelling of 14220631 in words is "fourteen million, two hundred twenty thousand, six hundred thirty-one".