124217 has 4 divisors (see below), whose sum is σ = 128256. Its totient is φ = 120180.

The previous prime is 124213. The next prime is 124231. The reversal of 124217 is 712421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 712421 = 691 ⋅1031.

It is a cyclic number.

It is not a de Polignac number, because 124217 - 2² = 124213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124195 and 124204.

It is not an unprimeable number, because it can be changed into a prime (124213) 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, 1973 + ... + 2034.

It is an arithmetic number, because the mean of its divisors is an integer number (32064).

2¹²⁴²¹⁷ is an apocalyptic number.

It is an amenable number.

124217 is a deficient number, since it is larger than the sum of its proper divisors (4039).

124217 is an equidigital number, since it uses as much as digits as its factorization.

124217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038.

The product of its digits is 112, while the sum is 17.

The square root of 124217 is about 352.4443218439. Note that the first 3 decimals coincide. The cubic root of 124217 is about 49.8953812510.

Adding to 124217 its reverse (712421), we get a palindrome (836638).

The spelling of 124217 in words is "one hundred twenty-four thousand, two hundred seventeen", and thus it is an iban number.