4197541 has 2 divisors, whose sum is σ = 4197542. Its totient is φ = 4197540.

The previous prime is 4197533. The next prime is 4197553. The reversal of 4197541 is 1457914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3629025 + 568516 = 1905^2 + 754^2 .

It is a cyclic number.

It is not a de Polignac number, because 4197541 - 2³ = 4197533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4197511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2098770 + 2098771.

It is an arithmetic number, because the mean of its divisors is an integer number (2098771).

Almost surely, 2^4197541 is an apocalyptic number.

It is an amenable number.

4197541 is a deficient number, since it is larger than the sum of its proper divisors (1).

4197541 is an equidigital number, since it uses as much as digits as its factorization.

4197541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 31.

The square root of 4197541 is about 2048.7901307845. The cubic root of 4197541 is about 161.3113709868.

The spelling of 4197541 in words is "four million, one hundred ninety-seven thousand, five hundred forty-one".