190381927 has 2 divisors, whose sum is σ = 190381928. Its totient is φ = 190381926.

The previous prime is 190381871. The next prime is 190381931. The reversal of 190381927 is 729183091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190381927 - 2¹¹ = 190379879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190381927.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190381987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95190963 + 95190964.

It is an arithmetic number, because the mean of its divisors is an integer number (95190964).

Almost surely, 2^190381927 is an apocalyptic number.

190381927 is a deficient number, since it is larger than the sum of its proper divisors (1).

190381927 is an equidigital number, since it uses as much as digits as its factorization.

190381927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 190381927 is about 13797.8957453664. The cubic root of 190381927 is about 575.2746534138.

The spelling of 190381927 in words is "one hundred ninety million, three hundred eighty-one thousand, nine hundred twenty-seven".