605391401 has 2 divisors, whose sum is σ = 605391402. Its totient is φ = 605391400.

The previous prime is 605391379. The next prime is 605391407. The reversal of 605391401 is 104193506.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 537312400 + 68079001 = 23180^2 + 8251^2 .

It is a cyclic number.

It is not a de Polignac number, because 605391401 - 2⁶ = 605391337 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (605391407) 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, 302695700 + 302695701.

It is an arithmetic number, because the mean of its divisors is an integer number (302695701).

Almost surely, 2^605391401 is an apocalyptic number.

It is an amenable number.

605391401 is a deficient number, since it is larger than the sum of its proper divisors (1).

605391401 is an equidigital number, since it uses as much as digits as its factorization.

605391401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 605391401 is about 24604.7028228345. The cubic root of 605391401 is about 845.9514048434.

The spelling of 605391401 in words is "six hundred five million, three hundred ninety-one thousand, four hundred one".