16443101 has 2 divisors, whose sum is σ = 16443102. Its totient is φ = 16443100.

The previous prime is 16443083. The next prime is 16443109. The reversal of 16443101 is 10134461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14830201 + 1612900 = 3851^2 + 1270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16443101 is a prime.

It is a super-3 number, since 3×16443101³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16443109) 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, 8221550 + 8221551.

It is an arithmetic number, because the mean of its divisors is an integer number (8221551).

Almost surely, 2^16443101 is an apocalyptic number.

It is an amenable number.

16443101 is a deficient number, since it is larger than the sum of its proper divisors (1).

16443101 is an equidigital number, since it uses as much as digits as its factorization.

16443101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 16443101 is about 4055.0093711359. The cubic root of 16443101 is about 254.2891956858.

Adding to 16443101 its reverse (10134461), we get a palindrome (26577562).

The spelling of 16443101 in words is "sixteen million, four hundred forty-three thousand, one hundred one".