394855141 has 8 divisors (see below), whose sum is σ = 425971224. Its totient is φ = 364615680.

The previous prime is 394855129. The next prime is 394855171. The reversal of 394855141 is 141558493.

It can be written as a sum of positive squares in 4 ways, for example, as 243048100 + 151807041 = 15590^2 + 12321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 394855141 - 2¹¹ = 394853093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 394855094 and 394855103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394855171) 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 in 7 ways as a sum of consecutive naturals, for example, 218220 + ... + 220021.

It is an arithmetic number, because the mean of its divisors is an integer number (53246403).

Almost surely, 2^394855141 is an apocalyptic number.

394855141 is the 12568-th centered pentagonal number.

It is an amenable number.

394855141 is a deficient number, since it is larger than the sum of its proper divisors (31116083).

394855141 is a wasteful number, since it uses less digits than its factorization.

394855141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438311.

The product of its digits is 86400, while the sum is 40.

The square root of 394855141 is about 19870.9622565189. The cubic root of 394855141 is about 733.6336879619.

The spelling of 394855141 in words is "three hundred ninety-four million, eight hundred fifty-five thousand, one hundred forty-one".