123044161 has 2 divisors, whose sum is σ = 123044162. Its totient is φ = 123044160.

The previous prime is 123044153. The next prime is 123044179. The reversal of 123044161 is 161440321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120033936 + 3010225 = 10956^2 + 1735^2 .

It is a cyclic number.

It is not a de Polignac number, because 123044161 - 2³ = 123044153 is a prime.

It is not a weakly prime, because it can be changed into another prime (123044101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61522080 + 61522081.

It is an arithmetic number, because the mean of its divisors is an integer number (61522081).

Almost surely, 2^123044161 is an apocalyptic number.

It is an amenable number.

123044161 is a deficient number, since it is larger than the sum of its proper divisors (1).

123044161 is an equidigital number, since it uses as much as digits as its factorization.

123044161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 123044161 is about 11092.5272593760. The cubic root of 123044161 is about 497.3784941013.

Adding to 123044161 its reverse (161440321), we get a palindrome (284484482).

The spelling of 123044161 in words is "one hundred twenty-three million, forty-four thousand, one hundred sixty-one".