123148389 has 16 divisors (see below), whose sum is σ = 202090112. Its totient is φ = 64957248.

The previous prime is 123148343. The next prime is 123148397. The reversal of 123148389 is 983841321.

It is not a de Polignac number, because 123148389 - 2⁷ = 123148261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123148589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225274 + ... + 225819.

It is an arithmetic number, because the mean of its divisors is an integer number (12630632).

Almost surely, 2^123148389 is an apocalyptic number.

It is an amenable number.

123148389 is a deficient number, since it is larger than the sum of its proper divisors (78941723).

123148389 is a wasteful number, since it uses less digits than its factorization.

123148389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451116.

The product of its digits is 41472, while the sum is 39.

The square root of 123148389 is about 11097.2243827004. The cubic root of 123148389 is about 497.5188939232.

The spelling of 123148389 in words is "one hundred twenty-three million, one hundred forty-eight thousand, three hundred eighty-nine".