16228057 has 2 divisors, whose sum is σ = 16228058. Its totient is φ = 16228056.

The previous prime is 16228039. The next prime is 16228063. The reversal of 16228057 is 75082261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15515721 + 712336 = 3939^2 + 844^2 .

It is an emirp because it is prime and its reverse (75082261) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16228057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16228007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8114028 + 8114029.

It is an arithmetic number, because the mean of its divisors is an integer number (8114029).

Almost surely, 2^16228057 is an apocalyptic number.

It is an amenable number.

16228057 is a deficient number, since it is larger than the sum of its proper divisors (1).

16228057 is an equidigital number, since it uses as much as digits as its factorization.

16228057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 16228057 is about 4028.4062605452. The cubic root of 16228057 is about 253.1757905904.

The spelling of 16228057 in words is "sixteen million, two hundred twenty-eight thousand, fifty-seven".