190550771 has 2 divisors, whose sum is σ = 190550772. Its totient is φ = 190550770.

The previous prime is 190550761. The next prime is 190550783. The reversal of 190550771 is 177055091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190550771 - 2¹⁰ = 190549747 is a prime.

It is not a weakly prime, because it can be changed into another prime (190550761) 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, 95275385 + 95275386.

It is an arithmetic number, because the mean of its divisors is an integer number (95275386).

Almost surely, 2^190550771 is an apocalyptic number.

190550771 is a deficient number, since it is larger than the sum of its proper divisors (1).

190550771 is an equidigital number, since it uses as much as digits as its factorization.

190550771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11025, while the sum is 35.

The square root of 190550771 is about 13804.0128585857. The cubic root of 190550771 is about 575.4446677543. Note that the first 3 decimals are identical.

The spelling of 190550771 in words is "one hundred ninety million, five hundred fifty thousand, seven hundred seventy-one".