124681 has 4 divisors (see below), whose sum is σ = 127764. Its totient is φ = 121600.

The previous prime is 124679. The next prime is 124693. The reversal of 124681 is 186421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 186421 = 277 ⋅673.

It can be written as a sum of positive squares in 2 ways, for example, as 67081 + 57600 = 259^2 + 240^2 .

It is a cyclic number.

It is not a de Polignac number, because 124681 - 2¹ = 124679 is a prime.

It is a super-2 number, since 2×124681² = 31090703522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (124601) 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, 1480 + ... + 1561.

It is an arithmetic number, because the mean of its divisors is an integer number (31941).

2¹²⁴⁶⁸¹ is an apocalyptic number.

It is an amenable number.

124681 is a deficient number, since it is larger than the sum of its proper divisors (3083).

124681 is an equidigital number, since it uses as much as digits as its factorization.

124681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082.

The product of its digits is 384, while the sum is 22.

The square root of 124681 is about 353.1019682755. The cubic root of 124681 is about 49.9574304336.

The spelling of 124681 in words is "one hundred twenty-four thousand, six hundred eighty-one".