162004289 has 2 divisors, whose sum is σ = 162004290. Its totient is φ = 162004288.

The previous prime is 162004267. The next prime is 162004333. The reversal of 162004289 is 982400261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151167025 + 10837264 = 12295^2 + 3292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162004289 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_9080456 and since 162004289 and 9080456 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (162004229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81002144 + 81002145.

It is an arithmetic number, because the mean of its divisors is an integer number (81002145).

Almost surely, 2^162004289 is an apocalyptic number.

It is an amenable number.

162004289 is a deficient number, since it is larger than the sum of its proper divisors (1).

162004289 is an equidigital number, since it uses as much as digits as its factorization.

162004289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 162004289 is about 12728.0905480752. The cubic root of 162004289 is about 545.1409886900.

The spelling of 162004289 in words is "one hundred sixty-two million, four thousand, two hundred eighty-nine".