321422459 has 2 divisors, whose sum is σ = 321422460. Its totient is φ = 321422458.

The previous prime is 321422407. The next prime is 321422461. The reversal of 321422459 is 954224123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321422459 - 2²⁸ = 52987003 is a prime.

Together with 321422461, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (321422159) 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, 160711229 + 160711230.

It is an arithmetic number, because the mean of its divisors is an integer number (160711230).

Almost surely, 2^321422459 is an apocalyptic number.

321422459 is a deficient number, since it is larger than the sum of its proper divisors (1).

321422459 is an equidigital number, since it uses as much as digits as its factorization.

321422459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 321422459 is about 17928.2586717171. The cubic root of 321422459 is about 685.0023684362.

The spelling of 321422459 in words is "three hundred twenty-one million, four hundred twenty-two thousand, four hundred fifty-nine".