394835141 has 2 divisors, whose sum is σ = 394835142. Its totient is φ = 394835140.

The previous prime is 394835123. The next prime is 394835167. The reversal of 394835141 is 141538493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 321664225 + 73170916 = 17935^2 + 8554^2 .

It is an emirp because it is prime and its reverse (141538493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 394835141 - 2²² = 390640837 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 394835095 and 394835104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394835171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197417570 + 197417571.

It is an arithmetic number, because the mean of its divisors is an integer number (197417571).

Almost surely, 2^394835141 is an apocalyptic number.

It is an amenable number.

394835141 is a deficient number, since it is larger than the sum of its proper divisors (1).

394835141 is an equidigital number, since it uses as much as digits as its factorization.

394835141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 394835141 is about 19870.4590032541. The cubic root of 394835141 is about 733.6213012071.

The spelling of 394835141 in words is "three hundred ninety-four million, eight hundred thirty-five thousand, one hundred forty-one".