850145017 has 2 divisors, whose sum is σ = 850145018. Its totient is φ = 850145016.

The previous prime is 850144973. The next prime is 850145033. The reversal of 850145017 is 710541058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 668946496 + 181198521 = 25864^2 + 13461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-850145017 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 850145017.

It is not a weakly prime, because it can be changed into another prime (850145047) 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, 425072508 + 425072509.

It is an arithmetic number, because the mean of its divisors is an integer number (425072509).

Almost surely, 2^850145017 is an apocalyptic number.

It is an amenable number.

850145017 is a deficient number, since it is larger than the sum of its proper divisors (1).

850145017 is an equidigital number, since it uses as much as digits as its factorization.

850145017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 850145017 is about 29157.2463891911. The cubic root of 850145017 is about 947.3221047100.

The spelling of 850145017 in words is "eight hundred fifty million, one hundred forty-five thousand, seventeen".