16122779 has 2 divisors, whose sum is σ = 16122780. Its totient is φ = 16122778.

The previous prime is 16122767. The next prime is 16122797. The reversal of 16122779 is 97722161.

Together with next prime (16122797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16122779 - 2²⁰ = 15074203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16122479) 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, 8061389 + 8061390.

It is an arithmetic number, because the mean of its divisors is an integer number (8061390).

Almost surely, 2^16122779 is an apocalyptic number.

16122779 is a deficient number, since it is larger than the sum of its proper divisors (1).

16122779 is an equidigital number, since it uses as much as digits as its factorization.

16122779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 35.

The square root of 16122779 is about 4015.3180446884. The cubic root of 16122779 is about 252.6271176425.

The spelling of 16122779 in words is "sixteen million, one hundred twenty-two thousand, seven hundred seventy-nine".