124940 has 12 divisors (see below), whose sum is σ = 262416. Its totient is φ = 49968.

The previous prime is 124919. The next prime is 124951. The reversal of 124940 is 49421.

It is a super-2 number, since 2×124940² = 31220007200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6247 = 124940 / (1 + 2 + 4 + 9 + 4 + 0).

It is an unprimeable number.

124940 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3104 + ... + 3143.

It is an arithmetic number, because the mean of its divisors is an integer number (21868).

2¹²⁴⁹⁴⁰ is an apocalyptic number.

124940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124940 is an abundant number, since it is smaller than the sum of its proper divisors (137476).

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

124940 is a wasteful number, since it uses less digits than its factorization.

124940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6256 (or 6254 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 124940 is about 353.4685275947. The cubic root of 124940 is about 49.9919987197.

The spelling of 124940 in words is "one hundred twenty-four thousand, nine hundred forty".