601600409 has 2 divisors, whose sum is σ = 601600410. Its totient is φ = 601600408.

The previous prime is 601600393. The next prime is 601600453. The reversal of 601600409 is 904006106.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 577344784 + 24255625 = 24028^2 + 4925^2 .

It is a cyclic number.

It is not a de Polignac number, because 601600409 - 2⁴ = 601600393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (601600469) 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, 300800204 + 300800205.

It is an arithmetic number, because the mean of its divisors is an integer number (300800205).

Almost surely, 2^601600409 is an apocalyptic number.

It is an amenable number.

601600409 is a deficient number, since it is larger than the sum of its proper divisors (1).

601600409 is an equidigital number, since it uses as much as digits as its factorization.

601600409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 601600409 is about 24527.5438843762. The cubic root of 601600409 is about 844.1819091027.

The spelling of 601600409 in words is "six hundred one million, six hundred thousand, four hundred nine".