124985128 has 64 divisors (see below), whose sum is σ = 257904000. Its totient is φ = 56593152.

The previous prime is 124985123. The next prime is 124985129. The reversal of 124985128 is 821589421.

It is not an unprimeable number, because it can be changed into a prime (124985123) 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, 314626 + ... + 315022.

It is an arithmetic number, because the mean of its divisors is an integer number (4029750).

Almost surely, 2^124985128 is an apocalyptic number.

It is an amenable number.

124985128 is an abundant number, since it is smaller than the sum of its proper divisors (132918872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124985128 is a wasteful number, since it uses less digits than its factorization.

124985128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 510 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 124985128 is about 11179.6747716559. The cubic root of 124985128 is about 499.9801698802.

The spelling of 124985128 in words is "one hundred twenty-four million, nine hundred eighty-five thousand, one hundred twenty-eight".