16020197 has 2 divisors, whose sum is σ = 16020198. Its totient is φ = 16020196.

The previous prime is 16020163. The next prime is 16020203. The reversal of 16020197 is 79102061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12630916 + 3389281 = 3554^2 + 1841^2 .

It is an emirp because it is prime and its reverse (79102061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16020197 - 2⁶ = 16020133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16020127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8010098 + 8010099.

It is an arithmetic number, because the mean of its divisors is an integer number (8010099).

Almost surely, 2^16020197 is an apocalyptic number.

It is an amenable number.

16020197 is a deficient number, since it is larger than the sum of its proper divisors (1).

16020197 is an equidigital number, since it uses as much as digits as its factorization.

16020197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 16020197 is about 4002.5238287860. The cubic root of 16020197 is about 252.0901930029.

The spelling of 16020197 in words is "sixteen million, twenty thousand, one hundred ninety-seven".