124239447 has 16 divisors (see below), whose sum is σ = 184296960. Its totient is φ = 82719000.

The previous prime is 124239433. The next prime is 124239457. The reversal of 124239447 is 744932421.

It is not a de Polignac number, because 124239447 - 2¹⁰ = 124238423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124239457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22072 + ... + 27122.

It is an arithmetic number, because the mean of its divisors is an integer number (11518560).

Almost surely, 2^124239447 is an apocalyptic number.

124239447 is a deficient number, since it is larger than the sum of its proper divisors (60057513).

124239447 is an equidigital number, since it uses as much as digits as its factorization.

124239447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5971 (or 5965 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 124239447 is about 11146.2750280082. The cubic root of 124239447 is about 498.9838656743.

The spelling of 124239447 in words is "one hundred twenty-four million, two hundred thirty-nine thousand, four hundred forty-seven".