14221631 has 2 divisors, whose sum is σ = 14221632. Its totient is φ = 14221630.

The previous prime is 14221583. The next prime is 14221643. The reversal of 14221631 is 13612241.

14221631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14221631 - 2²² = 10027327 is a prime.

It is a super-2 number, since 2×14221631² = 404509576600322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14221661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7110815 + 7110816.

It is an arithmetic number, because the mean of its divisors is an integer number (7110816).

Almost surely, 2^14221631 is an apocalyptic number.

14221631 is a deficient number, since it is larger than the sum of its proper divisors (1).

14221631 is an equidigital number, since it uses as much as digits as its factorization.

14221631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 14221631 is about 3771.1577797806. The cubic root of 14221631 is about 242.2793884079.

Adding to 14221631 its reverse (13612241), we get a palindrome (27833872).

The spelling of 14221631 in words is "fourteen million, two hundred twenty-one thousand, six hundred thirty-one".