162990589 has 2 divisors, whose sum is σ = 162990590. Its totient is φ = 162990588.

The previous prime is 162990563. The next prime is 162990601. The reversal of 162990589 is 985099261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162358564 + 632025 = 12742^2 + 795^2 .

It is an emirp because it is prime and its reverse (985099261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162990589 - 2⁹ = 162990077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162990559) 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, 81495294 + 81495295.

It is an arithmetic number, because the mean of its divisors is an integer number (81495295).

Almost surely, 2^162990589 is an apocalyptic number.

It is an amenable number.

162990589 is a deficient number, since it is larger than the sum of its proper divisors (1).

162990589 is an equidigital number, since it uses as much as digits as its factorization.

162990589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 49.

The square root of 162990589 is about 12766.7767662789. The cubic root of 162990589 is about 546.2450440198.

The spelling of 162990589 in words is "one hundred sixty-two million, nine hundred ninety thousand, five hundred eighty-nine".