394315141 has 4 divisors (see below), whose sum is σ = 430161984. Its totient is φ = 358468300.

The previous prime is 394315139. The next prime is 394315147. The reversal of 394315141 is 141513493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 394315141 - 2¹ = 394315139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394315147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17923405 + ... + 17923426.

It is an arithmetic number, because the mean of its divisors is an integer number (107540496).

Almost surely, 2^394315141 is an apocalyptic number.

It is an amenable number.

394315141 is a deficient number, since it is larger than the sum of its proper divisors (35846843).

394315141 is a wasteful number, since it uses less digits than its factorization.

394315141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35846842.

The product of its digits is 6480, while the sum is 31.

The square root of 394315141 is about 19857.3699416615. The cubic root of 394315141 is about 733.2990986544.

The spelling of 394315141 in words is "three hundred ninety-four million, three hundred fifteen thousand, one hundred forty-one".