124004939 has 4 divisors (see below), whose sum is σ = 124173480. Its totient is φ = 123836400.

The previous prime is 124004807. The next prime is 124004971. The reversal of 124004939 is 939400421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124004939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124004989) 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 3 ways as a sum of consecutive naturals, for example, 83162 + ... + 84639.

It is an arithmetic number, because the mean of its divisors is an integer number (31043370).

Almost surely, 2^124004939 is an apocalyptic number.

124004939 is a deficient number, since it is larger than the sum of its proper divisors (168541).

124004939 is an equidigital number, since it uses as much as digits as its factorization.

124004939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168540.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 124004939 is about 11135.7504910985. The cubic root of 124004939 is about 498.6697158269.

The spelling of 124004939 in words is "one hundred twenty-four million, four thousand, nine hundred thirty-nine".