394133 has 4 divisors (see below), whose sum is σ = 403788. Its totient is φ = 384480.

The previous prime is 394129. The next prime is 394153. The reversal of 394133 is 331493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 228484 + 165649 = 478^2 + 407^2 .

It is a cyclic number.

It is not a de Polignac number, because 394133 - 2² = 394129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 394099 and 394108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394123) 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, 4766 + ... + 4847.

It is an arithmetic number, because the mean of its divisors is an integer number (100947).

2³⁹⁴¹³³ is an apocalyptic number.

It is an amenable number.

394133 is a deficient number, since it is larger than the sum of its proper divisors (9655).

394133 is an equidigital number, since it uses as much as digits as its factorization.

394133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9654.

The product of its digits is 972, while the sum is 23.

The square root of 394133 is about 627.8001274291. The cubic root of 394133 is about 73.3186173409.

The spelling of 394133 in words is "three hundred ninety-four thousand, one hundred thirty-three".