124643109 has 8 divisors (see below), whose sum is σ = 166645120. Its totient is φ = 82868256.

The previous prime is 124643093. The next prime is 124643143. The reversal of 124643109 is 901346421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 124643109 - 2⁴ = 124643093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124643179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55504 + ... + 57705.

It is an arithmetic number, because the mean of its divisors is an integer number (20830640).

Almost surely, 2^124643109 is an apocalyptic number.

It is an amenable number.

124643109 is a deficient number, since it is larger than the sum of its proper divisors (42002011).

124643109 is a wasteful number, since it uses less digits than its factorization.

124643109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113579.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 124643109 is about 11164.3678280501. The cubic root of 124643109 is about 499.5236917383.

The spelling of 124643109 in words is "one hundred twenty-four million, six hundred forty-three thousand, one hundred nine".