601813 has 2 divisors, whose sum is σ = 601814. Its totient is φ = 601812.

The previous prime is 601807. The next prime is 601819. The reversal of 601813 is 318106.

It is a balanced prime because it is at equal distance from previous prime (601807) and next prime (601819).

It can be written as a sum of positive squares in only one way, i.e., 459684 + 142129 = 678^2 + 377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-601813 is a prime.

601813 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (601819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300906 + 300907.

It is an arithmetic number, because the mean of its divisors is an integer number (300907).

2⁶⁰¹⁸¹³ is an apocalyptic number.

It is an amenable number.

601813 is a deficient number, since it is larger than the sum of its proper divisors (1).

601813 is an equidigital number, since it uses as much as digits as its factorization.

601813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 601813 is about 775.7660729885. The cubic root of 601813 is about 84.4281335199.

Adding to 601813 its reverse (318106), we get a palindrome (919919).

The spelling of 601813 in words is "six hundred one thousand, eight hundred thirteen".