220134517 has 2 divisors, whose sum is σ = 220134518. Its totient is φ = 220134516.

The previous prime is 220134491. The next prime is 220134559. The reversal of 220134517 is 715431022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214593201 + 5541316 = 14649^2 + 2354^2 .

It is a cyclic number.

It is not a de Polignac number, because 220134517 - 2¹⁹ = 219610229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220134491 and 220134500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220134217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110067258 + 110067259.

It is an arithmetic number, because the mean of its divisors is an integer number (110067259).

Almost surely, 2^220134517 is an apocalyptic number.

It is an amenable number.

220134517 is a deficient number, since it is larger than the sum of its proper divisors (1).

220134517 is an equidigital number, since it uses as much as digits as its factorization.

220134517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 220134517 is about 14836.9308483931. The cubic root of 220134517 is about 603.8040870462.

Adding to 220134517 its reverse (715431022), we get a palindrome (935565539).

The spelling of 220134517 in words is "two hundred twenty million, one hundred thirty-four thousand, five hundred seventeen".