334541561 has 2 divisors, whose sum is σ = 334541562. Its totient is φ = 334541560.

The previous prime is 334541551. The next prime is 334541567. The reversal of 334541561 is 165145433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334158400 + 383161 = 18280^2 + 619^2 .

It is an emirp because it is prime and its reverse (165145433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 334541561 - 2¹⁰ = 334540537 is a prime.

It is a super-2 number, since 2×334541561² = 223836112072633442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (334541567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167270780 + 167270781.

It is an arithmetic number, because the mean of its divisors is an integer number (167270781).

Almost surely, 2^334541561 is an apocalyptic number.

It is an amenable number.

334541561 is a deficient number, since it is larger than the sum of its proper divisors (1).

334541561 is an equidigital number, since it uses as much as digits as its factorization.

334541561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 334541561 is about 18290.4773311141. The cubic root of 334541561 is about 694.1980024801.

Adding to 334541561 its reverse (165145433), we get a palindrome (499686994).

The spelling of 334541561 in words is "three hundred thirty-four million, five hundred forty-one thousand, five hundred sixty-one".