16197241 has 2 divisors, whose sum is σ = 16197242. Its totient is φ = 16197240.

The previous prime is 16197239. The next prime is 16197263. The reversal of 16197241 is 14279161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13169641 + 3027600 = 3629^2 + 1740^2 .

It is a cyclic number.

It is not a de Polignac number, because 16197241 - 2¹ = 16197239 is a prime.

Together with 16197239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16177241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8098620 + 8098621.

It is an arithmetic number, because the mean of its divisors is an integer number (8098621).

Almost surely, 2^16197241 is an apocalyptic number.

It is an amenable number.

16197241 is a deficient number, since it is larger than the sum of its proper divisors (1).

16197241 is an equidigital number, since it uses as much as digits as its factorization.

16197241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 31.

The square root of 16197241 is about 4024.5796053750. The cubic root of 16197241 is about 253.0154343878.

The spelling of 16197241 in words is "sixteen million, one hundred ninety-seven thousand, two hundred forty-one".