123128588 has 24 divisors (see below), whose sum is σ = 247437120. Its totient is φ = 53021520.

The previous prime is 123128581. The next prime is 123128609. The reversal of 123128588 is 885821321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (123128581) 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, 72806 + ... + 74477.

It is an arithmetic number, because the mean of its divisors is an integer number (10309880).

Almost surely, 2^123128588 is an apocalyptic number.

It is an amenable number.

123128588 is an abundant number, since it is smaller than the sum of its proper divisors (124308532).

123128588 is a wasteful number, since it uses less digits than its factorization.

123128588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147317 (or 147315 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 123128588 is about 11096.3321868084. The cubic root of 123128588 is about 497.4922271792.

The spelling of 123128588 in words is "one hundred twenty-three million, one hundred twenty-eight thousand, five hundred eighty-eight".