395571541 has 2 divisors, whose sum is σ = 395571542. Its totient is φ = 395571540.

The previous prime is 395571523. The next prime is 395571613. The reversal of 395571541 is 145175593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395174641 + 396900 = 19879^2 + 630^2 .

It is an emirp because it is prime and its reverse (145175593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395571541 - 2¹⁹ = 395047253 is a prime.

It is a super-2 number, since 2×395571541² = 312953688098229362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 395571494 and 395571503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395574541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197785770 + 197785771.

It is an arithmetic number, because the mean of its divisors is an integer number (197785771).

Almost surely, 2^395571541 is an apocalyptic number.

It is an amenable number.

395571541 is a deficient number, since it is larger than the sum of its proper divisors (1).

395571541 is an equidigital number, since it uses as much as digits as its factorization.

395571541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94500, while the sum is 40.

The square root of 395571541 is about 19888.9803911613. The cubic root of 395571541 is about 734.0771059675.

The spelling of 395571541 in words is "three hundred ninety-five million, five hundred seventy-one thousand, five hundred forty-one".