461220533 has 2 divisors, whose sum is σ = 461220534. Its totient is φ = 461220532.

The previous prime is 461220493. The next prime is 461220593. The reversal of 461220533 is 335022164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411968209 + 49252324 = 20297^2 + 7018^2 .

It is a cyclic number.

It is not a de Polignac number, because 461220533 - 2¹⁶ = 461154997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461220593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230610266 + 230610267.

It is an arithmetic number, because the mean of its divisors is an integer number (230610267).

Almost surely, 2^461220533 is an apocalyptic number.

It is an amenable number.

461220533 is a deficient number, since it is larger than the sum of its proper divisors (1).

461220533 is an equidigital number, since it uses as much as digits as its factorization.

461220533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 461220533 is about 21476.0455624400. The cubic root of 461220533 is about 772.6264016061.

Adding to 461220533 its reverse (335022164), we get a palindrome (796242697).

The spelling of 461220533 in words is "four hundred sixty-one million, two hundred twenty thousand, five hundred thirty-three".