1451422321 has 2 divisors, whose sum is σ = 1451422322. Its totient is φ = 1451422320.

The previous prime is 1451422289. The next prime is 1451422367. The reversal of 1451422321 is 1232241541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 963233296 + 488189025 = 31036^2 + 22095^2 .

It is a cyclic number.

It is not a de Polignac number, because 1451422321 - 2⁵ = 1451422289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1451423321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725711160 + 725711161.

It is an arithmetic number, because the mean of its divisors is an integer number (725711161).

Almost surely, 2^1451422321 is an apocalyptic number.

It is an amenable number.

1451422321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451422321 is an equidigital number, since it uses as much as digits as its factorization.

1451422321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 25.

The square root of 1451422321 is about 38097.5369413824. The cubic root of 1451422321 is about 1132.2211567989.

Adding to 1451422321 its reverse (1232241541), we get a palindrome (2683663862).

The spelling of 1451422321 in words is "one billion, four hundred fifty-one million, four hundred twenty-two thousand, three hundred twenty-one".