124939 has 4 divisors (see below), whose sum is σ = 126256. Its totient is φ = 123624.

The previous prime is 124919. The next prime is 124951. The reversal of 124939 is 939421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 124939 - 2⁵ = 124907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504 + ... + 709.

It is an arithmetic number, because the mean of its divisors is an integer number (31564).

2¹²⁴⁹³⁹ is an apocalyptic number.

124939 is a deficient number, since it is larger than the sum of its proper divisors (1317).

124939 is a wasteful number, since it uses less digits than its factorization.

124939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316.

The product of its digits is 1944, while the sum is 28.

The square root of 124939 is about 353.4671130388. The cubic root of 124939 is about 49.9918653433.

The spelling of 124939 in words is "one hundred twenty-four thousand, nine hundred thirty-nine".