190275077 has 2 divisors, whose sum is σ = 190275078. Its totient is φ = 190275076.

The previous prime is 190275073. The next prime is 190275097. The reversal of 190275077 is 770572091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131997121 + 58277956 = 11489^2 + 7634^2 .

It is a cyclic number.

It is not a de Polignac number, because 190275077 - 2² = 190275073 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190275077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190275073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95137538 + 95137539.

It is an arithmetic number, because the mean of its divisors is an integer number (95137539).

Almost surely, 2^190275077 is an apocalyptic number.

It is an amenable number.

190275077 is a deficient number, since it is larger than the sum of its proper divisors (1).

190275077 is an equidigital number, since it uses as much as digits as its factorization.

190275077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 190275077 is about 13794.0232347202. The cubic root of 190275077 is about 575.1670108437.

The spelling of 190275077 in words is "one hundred ninety million, two hundred seventy-five thousand, seventy-seven".