190555201 has 4 divisors (see below), whose sum is σ = 197126100. Its totient is φ = 183984304.

The previous prime is 190555181. The next prime is 190555219. The reversal of 190555201 is 102555091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39388176 + 151167025 = 6276^2 + 12295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190555201 is a prime.

It is a super-2 number, since 2×190555201² = 72622569256300802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 190555201.

It is not an unprimeable number, because it can be changed into a prime (190555241) 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 3 ways as a sum of consecutive naturals, for example, 3285406 + ... + 3285463.

It is an arithmetic number, because the mean of its divisors is an integer number (49281525).

Almost surely, 2^190555201 is an apocalyptic number.

It is an amenable number.

190555201 is a deficient number, since it is larger than the sum of its proper divisors (6570899).

190555201 is an equidigital number, since it uses as much as digits as its factorization.

190555201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570898.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 190555201 is about 13804.1733182397. The cubic root of 190555201 is about 575.4491271085.

The spelling of 190555201 in words is "one hundred ninety million, five hundred fifty-five thousand, two hundred one".