322748149 has 2 divisors, whose sum is σ = 322748150. Its totient is φ = 322748148.

The previous prime is 322748147. The next prime is 322748189. The reversal of 322748149 is 941847223.

It is an a-pointer prime, because the next prime (322748189) can be obtained adding 322748149 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317481124 + 5267025 = 17818^2 + 2295^2 .

It is an emirp because it is prime and its reverse (941847223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 322748149 - 2¹ = 322748147 is a prime.

Together with 322748147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322748141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161374074 + 161374075.

It is an arithmetic number, because the mean of its divisors is an integer number (161374075).

Almost surely, 2^322748149 is an apocalyptic number.

It is an amenable number.

322748149 is a deficient number, since it is larger than the sum of its proper divisors (1).

322748149 is an equidigital number, since it uses as much as digits as its factorization.

322748149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 40.

The square root of 322748149 is about 17965.1927070099. The cubic root of 322748149 is about 685.9428287204.

The spelling of 322748149 in words is "three hundred twenty-two million, seven hundred forty-eight thousand, one hundred forty-nine".