191022230 has 16 divisors (see below), whose sum is σ = 392960160. Its totient is φ = 65493312.

The previous prime is 191022203. The next prime is 191022233. The reversal of 191022230 is 32220191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191022233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364375 + ... + 1364514.

It is an arithmetic number, because the mean of its divisors is an integer number (24560010).

Almost surely, 2^191022230 is an apocalyptic number.

191022230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

191022230 is an abundant number, since it is smaller than the sum of its proper divisors (201937930).

191022230 is a wasteful number, since it uses less digits than its factorization.

191022230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728903.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 191022230 is about 13821.0791908592. The cubic root of 191022230 is about 575.9188635554.

The spelling of 191022230 in words is "one hundred ninety-one million, twenty-two thousand, two hundred thirty".