124128885 has 8 divisors (see below), whose sum is σ = 198606240. Its totient is φ = 66202064.

The previous prime is 124128877. The next prime is 124128889. The reversal of 124128885 is 588821421.

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 124128885 - 2³ = 124128877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124128889) 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, 4137615 + ... + 4137644.

It is an arithmetic number, because the mean of its divisors is an integer number (24825780).

Almost surely, 2^124128885 is an apocalyptic number.

124128885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124128885 is a deficient number, since it is larger than the sum of its proper divisors (74477355).

124128885 is an equidigital number, since it uses as much as digits as its factorization.

124128885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275267.

The product of its digits is 40960, while the sum is 39.

The square root of 124128885 is about 11141.3143300061. The cubic root of 124128885 is about 498.8358047360.

The spelling of 124128885 in words is "one hundred twenty-four million, one hundred twenty-eight thousand, eight hundred eighty-five".