124256243 has 2 divisors, whose sum is σ = 124256244. Its totient is φ = 124256242.

The previous prime is 124256173. The next prime is 124256261. The reversal of 124256243 is 342652421.

It is a strong prime.

It is an emirp because it is prime and its reverse (342652421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124256243 - 2⁸ = 124255987 is a prime.

It is a super-2 number, since 2×124256243² = 30879227848950098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (124256273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62128121 + 62128122.

It is an arithmetic number, because the mean of its divisors is an integer number (62128122).

Almost surely, 2^124256243 is an apocalyptic number.

124256243 is a deficient number, since it is larger than the sum of its proper divisors (1).

124256243 is an equidigital number, since it uses as much as digits as its factorization.

124256243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 29.

The square root of 124256243 is about 11147.0284381085. The cubic root of 124256243 is about 499.0063506300.

The spelling of 124256243 in words is "one hundred twenty-four million, two hundred fifty-six thousand, two hundred forty-three".