190928219 has 2 divisors, whose sum is σ = 190928220. Its totient is φ = 190928218.

The previous prime is 190928183. The next prime is 190928233. The reversal of 190928219 is 912829091.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190928219 is a prime.

It is a super-2 number, since 2×190928219² = 72907169621023922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190928239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95464109 + 95464110.

It is an arithmetic number, because the mean of its divisors is an integer number (95464110).

Almost surely, 2^190928219 is an apocalyptic number.

190928219 is a deficient number, since it is larger than the sum of its proper divisors (1).

190928219 is an equidigital number, since it uses as much as digits as its factorization.

190928219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 190928219 is about 13817.6777716084. The cubic root of 190928219 is about 575.8243691559.

The spelling of 190928219 in words is "one hundred ninety million, nine hundred twenty-eight thousand, two hundred nineteen".