124856243 has 2 divisors, whose sum is σ = 124856244. Its totient is φ = 124856242.

The previous prime is 124856233. The next prime is 124856257. The reversal of 124856243 is 342658421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124856243 - 2¹⁰ = 124855219 is a prime.

It is not a weakly prime, because it can be changed into another prime (124856233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62428121 + 62428122.

It is an arithmetic number, because the mean of its divisors is an integer number (62428122).

Almost surely, 2^124856243 is an apocalyptic number.

124856243 is a deficient number, since it is larger than the sum of its proper divisors (1).

124856243 is an equidigital number, since it uses as much as digits as its factorization.

124856243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 35.

The square root of 124856243 is about 11173.9090295205. The cubic root of 124856243 is about 499.8082504736.

It can be divided in two parts, 12485 and 6243, that multiplied together give a triangular number (77943855 = T₁₂₄₈₅).

The spelling of 124856243 in words is "one hundred twenty-four million, eight hundred fifty-six thousand, two hundred forty-three".