190559221 has 8 divisors (see below), whose sum is σ = 195399864. Its totient is φ = 185764800.

The previous prime is 190559219. The next prime is 190559231. The reversal of 190559221 is 122955091.

It can be written as a sum of positive squares in 4 ways, for example, as 84180625 + 106378596 = 9175^2 + 10314^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 190559221 - 2¹ = 190559219 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 (190559231) 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 7 ways as a sum of consecutive naturals, for example, 3130 + ... + 19771.

It is an arithmetic number, because the mean of its divisors is an integer number (24424983).

Almost surely, 2^190559221 is an apocalyptic number.

It is an amenable number.

190559221 is a deficient number, since it is larger than the sum of its proper divisors (4840643).

190559221 is a wasteful number, since it uses less digits than its factorization.

190559221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23111.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 190559221 is about 13804.3189256117. The cubic root of 190559221 is about 575.4531736861.

The spelling of 190559221 in words is "one hundred ninety million, five hundred fifty-nine thousand, two hundred twenty-one".