190730193 has 8 divisors (see below), whose sum is σ = 254990208. Its totient is φ = 126811824.

The previous prime is 190730171. The next prime is 190730209. The reversal of 190730193 is 391037091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190730193 - 2¹⁰ = 190729169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190730993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84105 + ... + 86342.

It is an arithmetic number, because the mean of its divisors is an integer number (31873776).

Almost surely, 2^190730193 is an apocalyptic number.

It is an amenable number.

190730193 is a deficient number, since it is larger than the sum of its proper divisors (64260015).

190730193 is a wasteful number, since it uses less digits than its factorization.

190730193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170823.

The product of its (nonzero) digits is 5103, while the sum is 33.

The square root of 190730193 is about 13810.5102367726. The cubic root of 190730193 is about 575.6252233857.

The spelling of 190730193 in words is "one hundred ninety million, seven hundred thirty thousand, one hundred ninety-three".