220142089 has 2 divisors, whose sum is σ = 220142090. Its totient is φ = 220142088.

The previous prime is 220142081. The next prime is 220142137. The reversal of 220142089 is 980241022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154256400 + 65885689 = 12420^2 + 8117^2 .

It is a cyclic number.

It is not a de Polignac number, because 220142089 - 2³ = 220142081 is a prime.

It is not a weakly prime, because it can be changed into another prime (220142081) 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 as a sum of consecutive naturals, namely, 110071044 + 110071045.

It is an arithmetic number, because the mean of its divisors is an integer number (110071045).

Almost surely, 2^220142089 is an apocalyptic number.

It is an amenable number.

220142089 is a deficient number, since it is larger than the sum of its proper divisors (1).

220142089 is an equidigital number, since it uses as much as digits as its factorization.

220142089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 220142089 is about 14837.1860202668. The cubic root of 220142089 is about 603.8110100134.

The spelling of 220142089 in words is "two hundred twenty million, one hundred forty-two thousand, eighty-nine".