220770013 has 2 divisors, whose sum is σ = 220770014. Its totient is φ = 220770012.

The previous prime is 220770001. The next prime is 220770019. The reversal of 220770013 is 310077022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220611609 + 158404 = 14853^2 + 398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220770013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220770019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110385006 + 110385007.

It is an arithmetic number, because the mean of its divisors is an integer number (110385007).

Almost surely, 2^220770013 is an apocalyptic number.

It is an amenable number.

220770013 is a deficient number, since it is larger than the sum of its proper divisors (1).

220770013 is an equidigital number, since it uses as much as digits as its factorization.

220770013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 220770013 is about 14858.3314339128. The cubic root of 220770013 is about 604.3845600457.

The spelling of 220770013 in words is "two hundred twenty million, seven hundred seventy thousand, thirteen".