124047439 has 2 divisors, whose sum is σ = 124047440. Its totient is φ = 124047438.

The previous prime is 124047431. The next prime is 124047449. The reversal of 124047439 is 934740421.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (934740421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124047439 - 2³ = 124047431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124047431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62023719 + 62023720.

It is an arithmetic number, because the mean of its divisors is an integer number (62023720).

Almost surely, 2^124047439 is an apocalyptic number.

124047439 is a deficient number, since it is larger than the sum of its proper divisors (1).

124047439 is an equidigital number, since it uses as much as digits as its factorization.

124047439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 124047439 is about 11137.6585959527. The cubic root of 124047439 is about 498.7266787252.

The spelling of 124047439 in words is "one hundred twenty-four million, forty-seven thousand, four hundred thirty-nine".