321449741 has 2 divisors, whose sum is σ = 321449742. Its totient is φ = 321449740.

The previous prime is 321449693. The next prime is 321449767. The reversal of 321449741 is 147944123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267486025 + 53963716 = 16355^2 + 7346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321449741 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321409741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160724870 + 160724871.

It is an arithmetic number, because the mean of its divisors is an integer number (160724871).

Almost surely, 2^321449741 is an apocalyptic number.

It is an amenable number.

321449741 is a deficient number, since it is larger than the sum of its proper divisors (1).

321449741 is an equidigital number, since it uses as much as digits as its factorization.

321449741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 321449741 is about 17929.0195214351. The cubic root of 321449741 is about 685.0217486479.

The spelling of 321449741 in words is "three hundred twenty-one million, four hundred forty-nine thousand, seven hundred forty-one".