16190197 has 2 divisors, whose sum is σ = 16190198. Its totient is φ = 16190196.

The previous prime is 16190143. The next prime is 16190219. The reversal of 16190197 is 79109161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15729156 + 461041 = 3966^2 + 679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16190197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16190107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8095098 + 8095099.

It is an arithmetic number, because the mean of its divisors is an integer number (8095099).

Almost surely, 2^16190197 is an apocalyptic number.

It is an amenable number.

16190197 is a deficient number, since it is larger than the sum of its proper divisors (1).

16190197 is an equidigital number, since it uses as much as digits as its factorization.

16190197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 16190197 is about 4023.7043877502. The cubic root of 16190197 is about 252.9787512033.

The spelling of 16190197 in words is "sixteen million, one hundred ninety thousand, one hundred ninety-seven".