220755097 has 4 divisors (see below), whose sum is σ = 220798516. Its totient is φ = 220711680.

The previous prime is 220755089. The next prime is 220755107. The reversal of 220755097 is 790557022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141705216 + 79049881 = 11904^2 + 8891^2 .

It is a cyclic number.

It is not a de Polignac number, because 220755097 - 2³ = 220755089 is a prime.

It is a super-3 number, since 3×220755097³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220755497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12888 + ... + 24649.

It is an arithmetic number, because the mean of its divisors is an integer number (55199629).

Almost surely, 2^220755097 is an apocalyptic number.

It is an amenable number.

220755097 is a deficient number, since it is larger than the sum of its proper divisors (43419).

220755097 is an equidigital number, since it uses as much as digits as its factorization.

220755097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43418.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 220755097 is about 14857.8294848205. The cubic root of 220755097 is about 604.3709482890.

It can be divided in two parts, 22075 and 5097, that added together give a palindrome (27172).

The spelling of 220755097 in words is "two hundred twenty million, seven hundred fifty-five thousand, ninety-seven".