220533461 has 2 divisors, whose sum is σ = 220533462. Its totient is φ = 220533460.

The previous prime is 220533377. The next prime is 220533479. The reversal of 220533461 is 164335022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171112561 + 49420900 = 13081^2 + 7030^2 .

It is a cyclic number.

It is not a de Polignac number, because 220533461 - 2¹⁰ = 220532437 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220533461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220533961) 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, 110266730 + 110266731.

It is an arithmetic number, because the mean of its divisors is an integer number (110266731).

Almost surely, 2^220533461 is an apocalyptic number.

It is an amenable number.

220533461 is a deficient number, since it is larger than the sum of its proper divisors (1).

220533461 is an equidigital number, since it uses as much as digits as its factorization.

220533461 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 220533461 is about 14850.3690526532. The cubic root of 220533461 is about 604.1686196835.

Adding to 220533461 its reverse (164335022), we get a palindrome (384868483).

The spelling of 220533461 in words is "two hundred twenty million, five hundred thirty-three thousand, four hundred sixty-one".