220138073 has 2 divisors, whose sum is σ = 220138074. Its totient is φ = 220138072.

The previous prime is 220138063. The next prime is 220138091. The reversal of 220138073 is 370831022.

220138073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213393664 + 6744409 = 14608^2 + 2597^2 .

It is a cyclic number.

It is not a de Polignac number, because 220138073 - 2⁴ = 220138057 is a prime.

It is not a weakly prime, because it can be changed into another prime (220138013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110069036 + 110069037.

It is an arithmetic number, because the mean of its divisors is an integer number (110069037).

Almost surely, 2^220138073 is an apocalyptic number.

It is an amenable number.

220138073 is a deficient number, since it is larger than the sum of its proper divisors (1).

220138073 is an equidigital number, since it uses as much as digits as its factorization.

220138073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 220138073 is about 14837.0506840140. The cubic root of 220138073 is about 603.8073382640.

Adding to 220138073 its reverse (370831022), we get a palindrome (590969095).

The spelling of 220138073 in words is "two hundred twenty million, one hundred thirty-eight thousand, seventy-three".