124880209 has 4 divisors (see below), whose sum is σ = 124904304. Its totient is φ = 124856116.

The previous prime is 124880201. The next prime is 124880221. The reversal of 124880209 is 902088421.

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: 902088421 = 13 ⋅69391417.

It is a cyclic number.

It is not a de Polignac number, because 124880209 - 2³ = 124880201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124880201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727 + ... + 15820.

It is an arithmetic number, because the mean of its divisors is an integer number (31226076).

Almost surely, 2^124880209 is an apocalyptic number.

It is an amenable number.

124880209 is a deficient number, since it is larger than the sum of its proper divisors (24095).

124880209 is an equidigital number, since it uses as much as digits as its factorization.

124880209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24094.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 124880209 is about 11174.9813870091. The cubic root of 124880209 is about 499.8402276177.

The spelling of 124880209 in words is "one hundred twenty-four million, eight hundred eighty thousand, two hundred nine".