16144631 has 2 divisors, whose sum is σ = 16144632. Its totient is φ = 16144630.

The previous prime is 16144613. The next prime is 16144633. The reversal of 16144631 is 13644161.

Together with previous prime (16144613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16144631 - 2⁶ = 16144567 is a prime.

It is a super-2 number, since 2×16144631² = 521298220252322, which contains 22 as substring.

Together with 16144633, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16144631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16144633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8072315 + 8072316.

It is an arithmetic number, because the mean of its divisors is an integer number (8072316).

Almost surely, 2^16144631 is an apocalyptic number.

16144631 is a deficient number, since it is larger than the sum of its proper divisors (1).

16144631 is an equidigital number, since it uses as much as digits as its factorization.

16144631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 16144631 is about 4018.0382029045. The cubic root of 16144631 is about 252.7411987949.

Adding to 16144631 its reverse (13644161), we get a palindrome (29788792).

The spelling of 16144631 in words is "sixteen million, one hundred forty-four thousand, six hundred thirty-one".