665083147 has 2 divisors, whose sum is σ = 665083148. Its totient is φ = 665083146.

The previous prime is 665083127. The next prime is 665083151. The reversal of 665083147 is 741380566.

It is a happy number.

665083147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-665083147 is a prime.

It is not a weakly prime, because it can be changed into another prime (665083127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332541573 + 332541574.

It is an arithmetic number, because the mean of its divisors is an integer number (332541574).

Almost surely, 2^665083147 is an apocalyptic number.

665083147 is a deficient number, since it is larger than the sum of its proper divisors (1).

665083147 is an equidigital number, since it uses as much as digits as its factorization.

665083147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 665083147 is about 25789.2060172468. The cubic root of 665083147 is about 872.8882504560. Note that the first 3 decimals are identical.

The spelling of 665083147 in words is "six hundred sixty-five million, eighty-three thousand, one hundred forty-seven".