545003197 has 2 divisors, whose sum is σ = 545003198. Its totient is φ = 545003196.

The previous prime is 545003191. The next prime is 545003209. The reversal of 545003197 is 791300545.

545003197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278856601 + 266146596 = 16699^2 + 16314^2 .

It is a cyclic number.

It is not a de Polignac number, because 545003197 - 2³ = 545003189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545003191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272501598 + 272501599.

It is an arithmetic number, because the mean of its divisors is an integer number (272501599).

Almost surely, 2^545003197 is an apocalyptic number.

It is an amenable number.

545003197 is a deficient number, since it is larger than the sum of its proper divisors (1).

545003197 is an equidigital number, since it uses as much as digits as its factorization.

545003197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 545003197 is about 23345.3035319740. The cubic root of 545003197 is about 816.8325142190.

The spelling of 545003197 in words is "five hundred forty-five million, three thousand, one hundred ninety-seven".