334551421 has 2 divisors, whose sum is σ = 334551422. Its totient is φ = 334551420.

The previous prime is 334551403. The next prime is 334551461. The reversal of 334551421 is 124155433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303247396 + 31304025 = 17414^2 + 5595^2 .

It is a cyclic number.

It is not a de Polignac number, because 334551421 - 2²³ = 326162813 is a prime.

It is a super-3 number, since 3×334551421³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 334551421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (334551461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167275710 + 167275711.

It is an arithmetic number, because the mean of its divisors is an integer number (167275711).

Almost surely, 2^334551421 is an apocalyptic number.

It is an amenable number.

334551421 is a deficient number, since it is larger than the sum of its proper divisors (1).

334551421 is an equidigital number, since it uses as much as digits as its factorization.

334551421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 334551421 is about 18290.7468682938. The cubic root of 334551421 is about 694.2048224848.

The spelling of 334551421 in words is "three hundred thirty-four million, five hundred fifty-one thousand, four hundred twenty-one".