220045513 has 2 divisors, whose sum is σ = 220045514. Its totient is φ = 220045512.

The previous prime is 220045481. The next prime is 220045537. The reversal of 220045513 is 315540022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192293689 + 27751824 = 13867^2 + 5268^2 .

It is a cyclic number.

It is not a de Polignac number, because 220045513 - 2⁵ = 220045481 is a prime.

It is not a weakly prime, because it can be changed into another prime (220045313) 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, 110022756 + 110022757.

It is an arithmetic number, because the mean of its divisors is an integer number (110022757).

Almost surely, 2^220045513 is an apocalyptic number.

It is an amenable number.

220045513 is a deficient number, since it is larger than the sum of its proper divisors (1).

220045513 is an equidigital number, since it uses as much as digits as its factorization.

220045513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 220045513 is about 14833.9311377665. The cubic root of 220045513 is about 603.7227001074.

Adding to 220045513 its reverse (315540022), we get a palindrome (535585535).

The spelling of 220045513 in words is "two hundred twenty million, forty-five thousand, five hundred thirteen".