220147693 has 2 divisors, whose sum is σ = 220147694. Its totient is φ = 220147692.

The previous prime is 220147687. The next prime is 220147721. The reversal of 220147693 is 396741022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113273449 + 106874244 = 10643^2 + 10338^2 .

It is a cyclic number.

It is not a de Polignac number, because 220147693 - 2⁹ = 220147181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220147643) 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, 110073846 + 110073847.

It is an arithmetic number, because the mean of its divisors is an integer number (110073847).

Almost surely, 2^220147693 is an apocalyptic number.

It is an amenable number.

220147693 is a deficient number, since it is larger than the sum of its proper divisors (1).

220147693 is an equidigital number, since it uses as much as digits as its factorization.

220147693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 220147693 is about 14837.3748688911. The cubic root of 220147693 is about 603.8161335652.

It can be divided in two parts, 2201 and 47693, that added together give a palindrome (49894).

The spelling of 220147693 in words is "two hundred twenty million, one hundred forty-seven thousand, six hundred ninety-three".