321484901 has 2 divisors, whose sum is σ = 321484902. Its totient is φ = 321484900.

The previous prime is 321484871. The next prime is 321484903. The reversal of 321484901 is 109484123.

It is a happy number.

It is a Cunningham number, because it is equal to 17930²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 321484900 + 1 = 17930^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 321484901 - 2⁶ = 321484837 is a prime.

Together with 321484903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321484903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160742450 + 160742451.

It is an arithmetic number, because the mean of its divisors is an integer number (160742451).

Almost surely, 2^321484901 is an apocalyptic number.

It is an amenable number.

321484901 is a deficient number, since it is larger than the sum of its proper divisors (1).

321484901 is an equidigital number, since it uses as much as digits as its factorization.

321484901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 321484901 is about 17930.0000278862. Note that the first 4 decimals coincide. The cubic root of 321484901 is about 685.0467235077.

The spelling of 321484901 in words is "three hundred twenty-one million, four hundred eighty-four thousand, nine hundred one".