123059889 has 12 divisors (see below), whose sum is σ = 188209476. Its totient is φ = 77213952.

The previous prime is 123059873. The next prime is 123059921. The reversal of 123059889 is 988950321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 108680625 + 14379264 = 10425^2 + 3792^2 .

It is not a de Polignac number, because 123059889 - 2⁴ = 123059873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123059869) 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 in 11 ways as a sum of consecutive naturals, for example, 402004 + ... + 402309.

It is an arithmetic number, because the mean of its divisors is an integer number (15684123).

Almost surely, 2^123059889 is an apocalyptic number.

It is an amenable number.

123059889 is a deficient number, since it is larger than the sum of its proper divisors (65149587).

123059889 is a wasteful number, since it uses less digits than its factorization.

123059889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804336 (or 804333 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 123059889 is about 11093.2361824672. The cubic root of 123059889 is about 497.3996855056.

The spelling of 123059889 in words is "one hundred twenty-three million, fifty-nine thousand, eight hundred eighty-nine".