124821938 has 16 divisors (see below), whose sum is σ = 191061504. Its totient is φ = 61145040.

The previous prime is 124821937. The next prime is 124821967. The reversal of 124821938 is 839128421.

It is not an unprimeable number, because it can be changed into a prime (124821937) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23156 + ... + 28032.

It is an arithmetic number, because the mean of its divisors is an integer number (11941344).

Almost surely, 2^124821938 is an apocalyptic number.

124821938 is a deficient number, since it is larger than the sum of its proper divisors (66239566).

124821938 is a wasteful number, since it uses less digits than its factorization.

124821938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5137.

The product of its digits is 27648, while the sum is 38.

The square root of 124821938 is about 11172.3738748755. The cubic root of 124821938 is about 499.7624711780.

The spelling of 124821938 in words is "one hundred twenty-four million, eight hundred twenty-one thousand, nine hundred thirty-eight".