190830293 has 4 divisors (see below), whose sum is σ = 194890560. Its totient is φ = 186770028.

The previous prime is 190830257. The next prime is 190830313. The reversal of 190830293 is 392038091.

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: 392038091 = 1013 ⋅387007.

It is a cyclic number.

It is not a de Polignac number, because 190830293 - 2⁶ = 190830229 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 (190838293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2030063 + ... + 2030156.

It is an arithmetic number, because the mean of its divisors is an integer number (48722640).

Almost surely, 2^190830293 is an apocalyptic number.

It is an amenable number.

190830293 is a deficient number, since it is larger than the sum of its proper divisors (4060267).

190830293 is an equidigital number, since it uses as much as digits as its factorization.

190830293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060266.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 190830293 is about 13814.1338128744. The cubic root of 190830293 is about 575.7259066366.

The spelling of 190830293 in words is "one hundred ninety million, eight hundred thirty thousand, two hundred ninety-three".