601229809 has 2 divisors, whose sum is σ = 601229810. Its totient is φ = 601229808.

The previous prime is 601229807. The next prime is 601229813. The reversal of 601229809 is 908922106.

601229809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 582498225 + 18731584 = 24135^2 + 4328^2 .

It is a cyclic number.

It is not a de Polignac number, because 601229809 - 2¹ = 601229807 is a prime.

It is a super-2 number, since 2×601229809² = 722954566460352962, which contains 22 as substring.

Together with 601229807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (601229801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300614904 + 300614905.

It is an arithmetic number, because the mean of its divisors is an integer number (300614905).

Almost surely, 2^601229809 is an apocalyptic number.

It is an amenable number.

601229809 is a deficient number, since it is larger than the sum of its proper divisors (1).

601229809 is an equidigital number, since it uses as much as digits as its factorization.

601229809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 601229809 is about 24519.9879486104. The cubic root of 601229809 is about 844.0085281926.

The spelling of 601229809 in words is "six hundred one million, two hundred twenty-nine thousand, eight hundred nine".