190270081 has 2 divisors, whose sum is σ = 190270082. Its totient is φ = 190270080.

The previous prime is 190270061. The next prime is 190270097. The reversal of 190270081 is 180072091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190191681 + 78400 = 13791^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 190270081 - 2¹³ = 190261889 is a prime.

It is a super-2 number, since 2×190270081² = 72405407447493122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (190270061) 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 as a sum of consecutive naturals, namely, 95135040 + 95135041.

It is an arithmetic number, because the mean of its divisors is an integer number (95135041).

Almost surely, 2^190270081 is an apocalyptic number.

It is an amenable number.

190270081 is a deficient number, since it is larger than the sum of its proper divisors (1).

190270081 is an equidigital number, since it uses as much as digits as its factorization.

190270081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 190270081 is about 13793.8421406075. The cubic root of 190270081 is about 575.1619767993.

The spelling of 190270081 in words is "one hundred ninety million, two hundred seventy thousand, eighty-one".