395161603 has 2 divisors, whose sum is σ = 395161604. Its totient is φ = 395161602.

The previous prime is 395161573. The next prime is 395161609. The reversal of 395161603 is 306161593.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395161603 is a prime.

It is equal to p_21091993 and since 395161603 and 21091993 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (395161609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197580801 + 197580802.

It is an arithmetic number, because the mean of its divisors is an integer number (197580802).

Almost surely, 2^395161603 is an apocalyptic number.

395161603 is a deficient number, since it is larger than the sum of its proper divisors (1).

395161603 is an equidigital number, since it uses as much as digits as its factorization.

395161603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 395161603 is about 19878.6720632944. The cubic root of 395161603 is about 733.8234391580.

The spelling of 395161603 in words is "three hundred ninety-five million, one hundred sixty-one thousand, six hundred three".