124338985 has 24 divisors (see below), whose sum is σ = 156218760. Its totient is φ = 94993920.

The previous prime is 124338971. The next prime is 124338997. The reversal of 124338985 is 589833421.

It can be written as a sum of positive squares in 4 ways, for example, as 7958041 + 116380944 = 2821^2 + 10788^2 .

It is not a de Polignac number, because 124338985 - 2⁷ = 124338857 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542851 + ... + 543079.

It is an arithmetic number, because the mean of its divisors is an integer number (6509115).

Almost surely, 2^124338985 is an apocalyptic number.

It is an amenable number.

124338985 is a deficient number, since it is larger than the sum of its proper divisors (31879775).

124338985 is a wasteful number, since it uses less digits than its factorization.

124338985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 378 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 124338985 is about 11150.7392131643. The cubic root of 124338985 is about 499.1170885190.

The spelling of 124338985 in words is "one hundred twenty-four million, three hundred thirty-eight thousand, nine hundred eighty-five".