220123049 has 2 divisors, whose sum is σ = 220123050. Its totient is φ = 220123048.

The previous prime is 220123031. The next prime is 220123067. The reversal of 220123049 is 940321022.

It is a balanced prime because it is at equal distance from previous prime (220123031) and next prime (220123067).

It can be written as a sum of positive squares in only one way, i.e., 183738025 + 36385024 = 13555^2 + 6032^2 .

It is a cyclic number.

It is not a de Polignac number, because 220123049 - 2¹² = 220118953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220123549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061524 + 110061525.

It is an arithmetic number, because the mean of its divisors is an integer number (110061525).

Almost surely, 2^220123049 is an apocalyptic number.

It is an amenable number.

220123049 is a deficient number, since it is larger than the sum of its proper divisors (1).

220123049 is an equidigital number, since it uses as much as digits as its factorization.

220123049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 220123049 is about 14836.5443752917. The cubic root of 220123049 is about 603.7936017217.

The spelling of 220123049 in words is "two hundred twenty million, one hundred twenty-three thousand, forty-nine".