322149889 has 2 divisors, whose sum is σ = 322149890. Its totient is φ = 322149888.

The previous prime is 322149887. The next prime is 322149899. The reversal of 322149889 is 988941223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319694400 + 2455489 = 17880^2 + 1567^2 .

It is a cyclic number.

It is not a de Polignac number, because 322149889 - 2¹ = 322149887 is a prime.

Together with 322149887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (322149887) 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, 161074944 + 161074945.

It is an arithmetic number, because the mean of its divisors is an integer number (161074945).

Almost surely, 2^322149889 is an apocalyptic number.

It is an amenable number.

322149889 is a deficient number, since it is larger than the sum of its proper divisors (1).

322149889 is an equidigital number, since it uses as much as digits as its factorization.

322149889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 46.

The square root of 322149889 is about 17948.5344527067. The cubic root of 322149889 is about 685.5187354239.

The spelling of 322149889 in words is "three hundred twenty-two million, one hundred forty-nine thousand, eight hundred eighty-nine".