190548221 has 2 divisors, whose sum is σ = 190548222. Its totient is φ = 190548220.

The previous prime is 190548157. The next prime is 190548233. The reversal of 190548221 is 122845091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170172025 + 20376196 = 13045^2 + 4514^2 .

It is an emirp because it is prime and its reverse (122845091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190548221 - 2⁶ = 190548157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190548521) 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 as a sum of consecutive naturals, namely, 95274110 + 95274111.

It is an arithmetic number, because the mean of its divisors is an integer number (95274111).

Almost surely, 2^190548221 is an apocalyptic number.

It is an amenable number.

190548221 is a deficient number, since it is larger than the sum of its proper divisors (1).

190548221 is an equidigital number, since it uses as much as digits as its factorization.

190548221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 190548221 is about 13803.9204938307. The cubic root of 190548221 is about 575.4421008261.

The spelling of 190548221 in words is "one hundred ninety million, five hundred forty-eight thousand, two hundred twenty-one".