123375989 has 8 divisors (see below), whose sum is σ = 134908032. Its totient is φ = 111896640.

The previous prime is 123375961. The next prime is 123376007. The reversal of 123375989 is 989573321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123375989 - 2¹² = 123371893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123375089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8189 + ... + 17714.

It is an arithmetic number, because the mean of its divisors is an integer number (16863504).

Almost surely, 2^123375989 is an apocalyptic number.

It is an amenable number.

123375989 is a deficient number, since it is larger than the sum of its proper divisors (11532043).

123375989 is a wasteful number, since it uses less digits than its factorization.

123375989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26347.

The product of its digits is 408240, while the sum is 47.

The square root of 123375989 is about 11107.4744654219. The cubic root of 123375989 is about 497.8252062593.

The spelling of 123375989 in words is "one hundred twenty-three million, three hundred seventy-five thousand, nine hundred eighty-nine".