16214431 has 2 divisors, whose sum is σ = 16214432. Its totient is φ = 16214430.

The previous prime is 16214417. The next prime is 16214437. The reversal of 16214431 is 13441261.

It is a strong prime.

It is an emirp because it is prime and its reverse (13441261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16214431 - 2²³ = 7825823 is a prime.

It is a super-2 number, since 2×16214431² = 525815545307522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16214437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8107215 + 8107216.

It is an arithmetic number, because the mean of its divisors is an integer number (8107216).

Almost surely, 2^16214431 is an apocalyptic number.

16214431 is a deficient number, since it is larger than the sum of its proper divisors (1).

16214431 is an equidigital number, since it uses as much as digits as its factorization.

16214431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 16214431 is about 4026.7146658287. The cubic root of 16214431 is about 253.1049104820.

Adding to 16214431 its reverse (13441261), we get a palindrome (29655692).

The spelling of 16214431 in words is "sixteen million, two hundred fourteen thousand, four hundred thirty-one".