162289313 has 2 divisors, whose sum is σ = 162289314. Its totient is φ = 162289312.

The previous prime is 162289297. The next prime is 162289331. The reversal of 162289313 is 313982261.

Together with next prime (162289331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150503824 + 11785489 = 12268^2 + 3433^2 .

It is a cyclic number.

It is not a de Polignac number, because 162289313 - 2⁴ = 162289297 is a prime.

It is a super-2 number, since 2×162289313² = 52675642228023938, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (162289513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81144656 + 81144657.

It is an arithmetic number, because the mean of its divisors is an integer number (81144657).

Almost surely, 2^162289313 is an apocalyptic number.

It is an amenable number.

162289313 is a deficient number, since it is larger than the sum of its proper divisors (1).

162289313 is an equidigital number, since it uses as much as digits as its factorization.

162289313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 162289313 is about 12739.2822796263. The cubic root of 162289313 is about 545.4605012843.

The spelling of 162289313 in words is "one hundred sixty-two million, two hundred eighty-nine thousand, three hundred thirteen".