147666017 has 2 divisors, whose sum is σ = 147666018. Its totient is φ = 147666016.

The previous prime is 147665983. The next prime is 147666019. The reversal of 147666017 is 710666741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143017681 + 4648336 = 11959^2 + 2156^2 .

It is a cyclic number.

It is not a de Polignac number, because 147666017 - 2¹⁴ = 147649633 is a prime.

Together with 147666019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (147666019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73833008 + 73833009.

It is an arithmetic number, because the mean of its divisors is an integer number (73833009).

Almost surely, 2^147666017 is an apocalyptic number.

It is an amenable number.

147666017 is a deficient number, since it is larger than the sum of its proper divisors (1).

147666017 is an equidigital number, since it uses as much as digits as its factorization.

147666017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 147666017 is about 12151.7906910875. The cubic root of 147666017 is about 528.5590585682.

The spelling of 147666017 in words is "one hundred forty-seven million, six hundred sixty-six thousand, seventeen".