1254334321 has 2 divisors, whose sum is σ = 1254334322. Its totient is φ = 1254334320.

The previous prime is 1254334313. The next prime is 1254334337. The reversal of 1254334321 is 1234334521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1229484096 + 24850225 = 35064^2 + 4985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254334321 - 2³ = 1254334313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1254334321.

It is not a weakly prime, because it can be changed into another prime (1254334421) 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, 627167160 + 627167161.

It is an arithmetic number, because the mean of its divisors is an integer number (627167161).

Almost surely, 2^1254334321 is an apocalyptic number.

It is an amenable number.

1254334321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254334321 is an equidigital number, since it uses as much as digits as its factorization.

1254334321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 28.

The square root of 1254334321 is about 35416.5825708806. The cubic root of 1254334321 is about 1078.4609769110.

Adding to 1254334321 its reverse (1234334521), we get a palindrome (2488668842).

It can be divided in two parts, 12543 and 34321, that added together give a palindrome (46864).

The spelling of 1254334321 in words is "one billion, two hundred fifty-four million, three hundred thirty-four thousand, three hundred twenty-one".