601543601 has 2 divisors, whose sum is σ = 601543602. Its totient is φ = 601543600.

The previous prime is 601543597. The next prime is 601543603. The reversal of 601543601 is 106345106.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600495025 + 1048576 = 24505^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 601543601 - 2² = 601543597 is a prime.

It is a Sophie Germain prime.

Together with 601543603, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (601543603) 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, 300771800 + 300771801.

It is an arithmetic number, because the mean of its divisors is an integer number (300771801).

Almost surely, 2^601543601 is an apocalyptic number.

It is an amenable number.

601543601 is a deficient number, since it is larger than the sum of its proper divisors (1).

601543601 is an equidigital number, since it uses as much as digits as its factorization.

601543601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 601543601 is about 24526.3858120189. The cubic root of 601543601 is about 844.1553367607.

Adding to 601543601 its reverse (106345106), we get a palindrome (707888707).

The spelling of 601543601 in words is "six hundred one million, five hundred forty-three thousand, six hundred one".