959418209 has 2 divisors, whose sum is σ = 959418210. Its totient is φ = 959418208.

The previous prime is 959418199. The next prime is 959418221. The reversal of 959418209 is 902814959.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 571210000 + 388208209 = 23900^2 + 19703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-959418209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (959418289) 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, 479709104 + 479709105.

It is an arithmetic number, because the mean of its divisors is an integer number (479709105).

Almost surely, 2^959418209 is an apocalyptic number.

It is an amenable number.

959418209 is a deficient number, since it is larger than the sum of its proper divisors (1).

959418209 is an equidigital number, since it uses as much as digits as its factorization.

959418209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 959418209 is about 30974.4767348861. The cubic root of 959418209 is about 986.2855089078.

The spelling of 959418209 in words is "nine hundred fifty-nine million, four hundred eighteen thousand, two hundred nine".