191470193 has 4 divisors (see below), whose sum is σ = 199795008. Its totient is φ = 183145380.

The previous prime is 191470183. The next prime is 191470199. The reversal of 191470193 is 391074191.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 391074191 = 149 ⋅2624659.

It is a cyclic number.

It is not a de Polignac number, because 191470193 - 2⁴ = 191470177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (191470199) 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, 4162373 + ... + 4162418.

It is an arithmetic number, because the mean of its divisors is an integer number (49948752).

Almost surely, 2^191470193 is an apocalyptic number.

It is an amenable number.

191470193 is a deficient number, since it is larger than the sum of its proper divisors (8324815).

191470193 is an equidigital number, since it uses as much as digits as its factorization.

191470193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8324814.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 191470193 is about 13837.2754905003. The cubic root of 191470193 is about 576.3687046282.

The spelling of 191470193 in words is "one hundred ninety-one million, four hundred seventy thousand, one hundred ninety-three".