194730211 has 4 divisors (see below), whose sum is σ = 209709472. Its totient is φ = 179750952.

The previous prime is 194730203. The next prime is 194730229. The reversal of 194730211 is 112037491.

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

It is a cyclic number.

It is not a de Polignac number, because 194730211 - 2³ = 194730203 is a prime.

It is a super-2 number, since 2×194730211² = 75839710152209042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194730211.

It is not an unprimeable number, because it can be changed into a prime (194730241) 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, 7489611 + ... + 7489636.

It is an arithmetic number, because the mean of its divisors is an integer number (52427368).

Almost surely, 2^194730211 is an apocalyptic number.

194730211 is a deficient number, since it is larger than the sum of its proper divisors (14979261).

194730211 is a wasteful number, since it uses less digits than its factorization.

194730211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14979260.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 194730211 is about 13954.5767044364. The cubic root of 194730211 is about 579.6214444161.

The spelling of 194730211 in words is "one hundred ninety-four million, seven hundred thirty thousand, two hundred eleven".