124812 has 18 divisors (see below), whose sum is σ = 315588. Its totient is φ = 41592.

The previous prime is 124799. The next prime is 124819. The reversal of 124812 is 218421.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 2.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 124812.

It is not an unprimeable number, because it can be changed into a prime (124819) by changing a digit.

124812 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1698 + ... + 1769.

2¹²⁴⁸¹² is an apocalyptic number.

124812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

124812 is an abundant number, since it is smaller than the sum of its proper divisors (190776).

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

124812 is a wasteful number, since it uses less digits than its factorization.

124812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477 (or 3472 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 124812 is about 353.2874184004. The cubic root of 124812 is about 49.9749207561.

The spelling of 124812 in words is "one hundred twenty-four thousand, eight hundred twelve".