124647 has 4 divisors (see below), whose sum is σ = 166200. Its totient is φ = 83096.

The previous prime is 124643. The next prime is 124669. The reversal of 124647 is 746421.

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 124647 - 2² = 124643 is a prime.

It is a D-number.

124647 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124643) 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, 20772 + ... + 20777.

It is an arithmetic number, because the mean of its divisors is an integer number (41550).

2¹²⁴⁶⁴⁷ is an apocalyptic number.

124647 is a deficient number, since it is larger than the sum of its proper divisors (41553).

124647 is an equidigital number, since it uses as much as digits as its factorization.

124647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41552.

The product of its digits is 1344, while the sum is 24.

The square root of 124647 is about 353.0538202597. The cubic root of 124647 is about 49.9528889583.

The spelling of 124647 in words is "one hundred twenty-four thousand, six hundred forty-seven".