190471093 has 2 divisors, whose sum is σ = 190471094. Its totient is φ = 190471092.

The previous prime is 190471081. The next prime is 190471103. The reversal of 190471093 is 390174091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118526769 + 71944324 = 10887^2 + 8482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190471093 is a prime.

It is a super-2 number, since 2×190471093² = 72558474537229298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190471003) 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, 95235546 + 95235547.

It is an arithmetic number, because the mean of its divisors is an integer number (95235547).

Almost surely, 2^190471093 is an apocalyptic number.

It is an amenable number.

190471093 is a deficient number, since it is larger than the sum of its proper divisors (1).

190471093 is an equidigital number, since it uses as much as digits as its factorization.

190471093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 190471093 is about 13801.1265119917. The cubic root of 190471093 is about 575.3644499867.

The spelling of 190471093 in words is "one hundred ninety million, four hundred seventy-one thousand, ninety-three".