220318061 has 2 divisors, whose sum is σ = 220318062. Its totient is φ = 220318060.

The previous prime is 220318019. The next prime is 220318099. The reversal of 220318061 is 160813022.

220318061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205348900 + 14969161 = 14330^2 + 3869^2 .

It is a cyclic number.

It is not a de Polignac number, because 220318061 - 2¹⁰ = 220317037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220318261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110159030 + 110159031.

It is an arithmetic number, because the mean of its divisors is an integer number (110159031).

Almost surely, 2^220318061 is an apocalyptic number.

It is an amenable number.

220318061 is a deficient number, since it is larger than the sum of its proper divisors (1).

220318061 is an equidigital number, since it uses as much as digits as its factorization.

220318061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 220318061 is about 14843.1149358886. The cubic root of 220318061 is about 603.9718539068.

The spelling of 220318061 in words is "two hundred twenty million, three hundred eighteen thousand, sixty-one".