16138799 has 2 divisors, whose sum is σ = 16138800. Its totient is φ = 16138798.

The previous prime is 16138783. The next prime is 16138823. The reversal of 16138799 is 99783161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16138799 - 2⁴ = 16138783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16138739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8069399 + 8069400.

It is an arithmetic number, because the mean of its divisors is an integer number (8069400).

Almost surely, 2^16138799 is an apocalyptic number.

16138799 is a deficient number, since it is larger than the sum of its proper divisors (1).

16138799 is an equidigital number, since it uses as much as digits as its factorization.

16138799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 44.

The square root of 16138799 is about 4017.3124100573. The cubic root of 16138799 is about 252.7107621708.

The spelling of 16138799 in words is "sixteen million, one hundred thirty-eight thousand, seven hundred ninety-nine".