334225721 has 2 divisors, whose sum is σ = 334225722. Its totient is φ = 334225720.

The previous prime is 334225711. The next prime is 334225739. The reversal of 334225721 is 127522433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172554496 + 161671225 = 13136^2 + 12715^2 .

It is a cyclic number.

It is not a de Polignac number, because 334225721 - 2¹⁰ = 334224697 is a prime.

It is a super-2 number, since 2×334225721² = 223413665155939682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (334225711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167112860 + 167112861.

It is an arithmetic number, because the mean of its divisors is an integer number (167112861).

Almost surely, 2^334225721 is an apocalyptic number.

It is an amenable number.

334225721 is a deficient number, since it is larger than the sum of its proper divisors (1).

334225721 is an equidigital number, since it uses as much as digits as its factorization.

334225721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 334225721 is about 18281.8412912923. The cubic root of 334225721 is about 693.9794700579.

The spelling of 334225721 in words is "three hundred thirty-four million, two hundred twenty-five thousand, seven hundred twenty-one".