220354434137 has 2 divisors, whose sum is σ = 220354434138. Its totient is φ = 220354434136.

The previous prime is 220354434107. The next prime is 220354434173. The reversal of 220354434137 is 731434453022.

220354434137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (220354434173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216965913616 + 3388520521 = 465796^2 + 58211^2 .

It is a cyclic number.

It is not a de Polignac number, because 220354434137 - 2¹² = 220354430041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220354434137.

It is not a weakly prime, because it can be changed into another prime (220354434107) 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, 110177217068 + 110177217069.

It is an arithmetic number, because the mean of its divisors is an integer number (110177217069).

Almost surely, 2^220354434137 is an apocalyptic number.

It is an amenable number.

220354434137 is a deficient number, since it is larger than the sum of its proper divisors (1).

220354434137 is an equidigital number, since it uses as much as digits as its factorization.

220354434137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 38.

Adding to 220354434137 its reverse (731434453022), we get a palindrome (951788887159).

The spelling of 220354434137 in words is "two hundred twenty billion, three hundred fifty-four million, four hundred thirty-four thousand, one hundred thirty-seven".