16138841 has 2 divisors, whose sum is σ = 16138842. Its totient is φ = 16138840.

The previous prime is 16138823. The next prime is 16138861. The reversal of 16138841 is 14883161.

It is a happy number.

16138841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14409616 + 1729225 = 3796^2 + 1315^2 .

It is a cyclic number.

It is not a de Polignac number, because 16138841 - 2⁶ = 16138777 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16138798 and 16138807.

It is not a weakly prime, because it can be changed into another prime (16138861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8069420 + 8069421.

It is an arithmetic number, because the mean of its divisors is an integer number (8069421).

Almost surely, 2^16138841 is an apocalyptic number.

It is an amenable number.

16138841 is a deficient number, since it is larger than the sum of its proper divisors (1).

16138841 is an equidigital number, since it uses as much as digits as its factorization.

16138841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 32.

The square root of 16138841 is about 4017.3176374292. The cubic root of 16138841 is about 252.7109813908.

The spelling of 16138841 in words is "sixteen million, one hundred thirty-eight thousand, eight hundred forty-one".