1682165197 has 2 divisors, whose sum is σ = 1682165198. Its totient is φ = 1682165196.

The previous prime is 1682165189. The next prime is 1682165227. The reversal of 1682165197 is 7915612861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1077546276 + 604618921 = 32826^2 + 24589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1682165197 - 2³ = 1682165189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1682165137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841082598 + 841082599.

It is an arithmetic number, because the mean of its divisors is an integer number (841082599).

Almost surely, 2^1682165197 is an apocalyptic number.

It is an amenable number.

1682165197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1682165197 is an equidigital number, since it uses as much as digits as its factorization.

1682165197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 46.

The square root of 1682165197 is about 41014.2072579734. The cubic root of 1682165197 is about 1189.2948761500.

The spelling of 1682165197 in words is "one billion, six hundred eighty-two million, one hundred sixty-five thousand, one hundred ninety-seven".