190164077 has 2 divisors, whose sum is σ = 190164078. Its totient is φ = 190164076.

The previous prime is 190164071. The next prime is 190164131. The reversal of 190164077 is 770461091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190136521 + 27556 = 13789^2 + 166^2 .

It is an emirp because it is prime and its reverse (770461091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190164077 - 2⁴ = 190164061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190164071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95082038 + 95082039.

It is an arithmetic number, because the mean of its divisors is an integer number (95082039).

Almost surely, 2^190164077 is an apocalyptic number.

It is an amenable number.

190164077 is a deficient number, since it is larger than the sum of its proper divisors (1).

190164077 is an equidigital number, since it uses as much as digits as its factorization.

190164077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 190164077 is about 13789.9991660623. Note that the first 3 decimals coincide. The cubic root of 190164077 is about 575.0551448057.

The spelling of 190164077 in words is "one hundred ninety million, one hundred sixty-four thousand, seventy-seven".