194326213 has 4 divisors (see below), whose sum is σ = 196046028. Its totient is φ = 192606400.

The previous prime is 194326199. The next prime is 194326217. The reversal of 194326213 is 312623491.

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 32069569 + 162256644 = 5663^2 + 12738^2 .

It is a cyclic number.

It is not a de Polignac number, because 194326213 - 2²⁵ = 160771781 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194326217) 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, 859738 + ... + 859963.

It is an arithmetic number, because the mean of its divisors is an integer number (49011507).

Almost surely, 2^194326213 is an apocalyptic number.

It is an amenable number.

194326213 is a deficient number, since it is larger than the sum of its proper divisors (1719815).

194326213 is a wasteful number, since it uses less digits than its factorization.

194326213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719814.

The product of its digits is 7776, while the sum is 31.

The square root of 194326213 is about 13940.0937227839. The cubic root of 194326213 is about 579.2203287258.

The spelling of 194326213 in words is "one hundred ninety-four million, three hundred twenty-six thousand, two hundred thirteen".