16138323 has 6 divisors (see below), whose sum is σ = 23310924. Its totient is φ = 10758876.

The previous prime is 16138319. The next prime is 16138333. The reversal of 16138323 is 32383161.

It is a happy number.

It is not a de Polignac number, because 16138323 - 2² = 16138319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16138313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 896565 + ... + 896582.

It is an arithmetic number, because the mean of its divisors is an integer number (3885154).

Almost surely, 2^16138323 is an apocalyptic number.

16138323 is a deficient number, since it is larger than the sum of its proper divisors (7172601).

16138323 is a wasteful number, since it uses less digits than its factorization.

16138323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793153 (or 1793150 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 16138323 is about 4017.2531660327. The cubic root of 16138323 is about 252.7082776509.

It can be divided in two parts, 16138 and 323, that added together give a palindrome (16461).

The spelling of 16138323 in words is "sixteen million, one hundred thirty-eight thousand, three hundred twenty-three".