16777139 has 2 divisors, whose sum is σ = 16777140. Its totient is φ = 16777138.

The previous prime is 16777127. The next prime is 16777141. The reversal of 16777139 is 93177761.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16777139 is a prime.

Together with 16777141, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 8 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16777096 and 16777105.

It is not a weakly prime, because it can be changed into another prime (16777199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8388569 + 8388570.

It is an arithmetic number, because the mean of its divisors is an integer number (8388570).

Almost surely, 2^16777139 is an apocalyptic number.

16777139 is a deficient number, since it is larger than the sum of its proper divisors (1).

16777139 is an equidigital number, since it uses as much as digits as its factorization.

16777139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55566, while the sum is 41.

The square root of 16777139 is about 4095.9906005752. The cubic root of 16777139 is about 255.9996083571. Note that the first 3 decimals are identical.

The spelling of 16777139 in words is "sixteen million, seven hundred seventy-seven thousand, one hundred thirty-nine".