124540439 has 2 divisors, whose sum is σ = 124540440. Its totient is φ = 124540438.

The previous prime is 124540387. The next prime is 124540441. The reversal of 124540439 is 934045421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124540439 is a prime.

Together with 124540441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124540499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62270219 + 62270220.

It is an arithmetic number, because the mean of its divisors is an integer number (62270220).

Almost surely, 2^124540439 is an apocalyptic number.

124540439 is a deficient number, since it is larger than the sum of its proper divisors (1).

124540439 is an equidigital number, since it uses as much as digits as its factorization.

124540439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 124540439 is about 11159.7687700059. The cubic root of 124540439 is about 499.3864995423.

The spelling of 124540439 in words is "one hundred twenty-four million, five hundred forty thousand, four hundred thirty-nine".