193109213 has 16 divisors (see below), whose sum is σ = 213995520. Its totient is φ = 172801200.

The previous prime is 193109207. The next prime is 193109227. The reversal of 193109213 is 312901391.

It is not a de Polignac number, because 193109213 - 2⁶ = 193109149 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 (193109243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224378 + ... + 225236.

It is an arithmetic number, because the mean of its divisors is an integer number (13374720).

Almost surely, 2^193109213 is an apocalyptic number.

It is an amenable number.

193109213 is a deficient number, since it is larger than the sum of its proper divisors (20886307).

193109213 is a wasteful number, since it uses less digits than its factorization.

193109213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 193109213 is about 13896.3740954250. The cubic root of 193109213 is about 578.0086414101.

The spelling of 193109213 in words is "one hundred ninety-three million, one hundred nine thousand, two hundred thirteen".