190780027 has 2 divisors, whose sum is σ = 190780028. Its totient is φ = 190780026.

The previous prime is 190779997. The next prime is 190780033. The reversal of 190780027 is 720087091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190780027 - 2²⁷ = 56562299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190779974 and 190780001.

It is not a weakly prime, because it can be changed into another prime (190780087) 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, 95390013 + 95390014.

It is an arithmetic number, because the mean of its divisors is an integer number (95390014).

Almost surely, 2^190780027 is an apocalyptic number.

190780027 is a deficient number, since it is larger than the sum of its proper divisors (1).

190780027 is an equidigital number, since it uses as much as digits as its factorization.

190780027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 190780027 is about 13812.3143245439. The cubic root of 190780027 is about 575.6753521548.

The spelling of 190780027 in words is "one hundred ninety million, seven hundred eighty thousand, twenty-seven".