321146479 has 2 divisors, whose sum is σ = 321146480. Its totient is φ = 321146478.

The previous prime is 321146471. The next prime is 321146503. The reversal of 321146479 is 974641123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321146479 - 2³ = 321146471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321146471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160573239 + 160573240.

It is an arithmetic number, because the mean of its divisors is an integer number (160573240).

Almost surely, 2^321146479 is an apocalyptic number.

321146479 is a deficient number, since it is larger than the sum of its proper divisors (1).

321146479 is an equidigital number, since it uses as much as digits as its factorization.

321146479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 321146479 is about 17920.5602311981. The cubic root of 321146479 is about 684.8062598770.

The spelling of 321146479 in words is "three hundred twenty-one million, one hundred forty-six thousand, four hundred seventy-nine".