16397141 has 2 divisors, whose sum is σ = 16397142. Its totient is φ = 16397140.

The previous prime is 16397123. The next prime is 16397167. The reversal of 16397141 is 14179361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9480241 + 6916900 = 3079^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 16397141 - 2²² = 12202837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16397098 and 16397107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16397191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8198570 + 8198571.

It is an arithmetic number, because the mean of its divisors is an integer number (8198571).

Almost surely, 2^16397141 is an apocalyptic number.

It is an amenable number.

16397141 is a deficient number, since it is larger than the sum of its proper divisors (1).

16397141 is an equidigital number, since it uses as much as digits as its factorization.

16397141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 32.

The square root of 16397141 is about 4049.3383410133. The cubic root of 16397141 is about 254.0520539356.

The spelling of 16397141 in words is "sixteen million, three hundred ninety-seven thousand, one hundred forty-one".