461420321 has 2 divisors, whose sum is σ = 461420322. Its totient is φ = 461420320.

The previous prime is 461420261. The next prime is 461420329. The reversal of 461420321 is 123024164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 459502096 + 1918225 = 21436^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 461420321 - 2⁶ = 461420257 is a prime.

It is not a weakly prime, because it can be changed into another prime (461420329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230710160 + 230710161.

It is an arithmetic number, because the mean of its divisors is an integer number (230710161).

Almost surely, 2^461420321 is an apocalyptic number.

It is an amenable number.

461420321 is a deficient number, since it is larger than the sum of its proper divisors (1).

461420321 is an equidigital number, since it uses as much as digits as its factorization.

461420321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 461420321 is about 21480.6964738111. The cubic root of 461420321 is about 772.7379456431.

Adding to 461420321 its reverse (123024164), we get a palindrome (584444485).

The spelling of 461420321 in words is "four hundred sixty-one million, four hundred twenty thousand, three hundred twenty-one".