620065541 has 2 divisors, whose sum is σ = 620065542. Its totient is φ = 620065540.

The previous prime is 620065471. The next prime is 620065543. The reversal of 620065541 is 145560026.

620065541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 548730625 + 71334916 = 23425^2 + 8446^2 .

It is a cyclic number.

It is not a de Polignac number, because 620065541 - 2¹⁸ = 619803397 is a prime.

Together with 620065543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620065543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310032770 + 310032771.

It is an arithmetic number, because the mean of its divisors is an integer number (310032771).

Almost surely, 2^620065541 is an apocalyptic number.

It is an amenable number.

620065541 is a deficient number, since it is larger than the sum of its proper divisors (1).

620065541 is an equidigital number, since it uses as much as digits as its factorization.

620065541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 620065541 is about 24901.1152561487. The cubic root of 620065541 is about 852.7319440088.

The spelling of 620065541 in words is "six hundred twenty million, sixty-five thousand, five hundred forty-one".