605145643 has 2 divisors, whose sum is σ = 605145644. Its totient is φ = 605145642.

The previous prime is 605145601. The next prime is 605145661. The reversal of 605145643 is 346541506.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 605145643 - 2²¹ = 603048491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 605145599 and 605145608.

It is not a weakly prime, because it can be changed into another prime (605145683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302572821 + 302572822.

It is an arithmetic number, because the mean of its divisors is an integer number (302572822).

Almost surely, 2^605145643 is an apocalyptic number.

605145643 is a deficient number, since it is larger than the sum of its proper divisors (1).

605145643 is an equidigital number, since it uses as much as digits as its factorization.

605145643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 605145643 is about 24599.7081893261. The cubic root of 605145643 is about 845.8369183236.

The spelling of 605145643 in words is "six hundred five million, one hundred forty-five thousand, six hundred forty-three".