124712243 has 4 divisors (see below), whose sum is σ = 126756768. Its totient is φ = 122667720.

The previous prime is 124712191. The next prime is 124712299. The reversal of 124712243 is 342217421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124712243 - 2⁸ = 124711987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124712743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022171 + ... + 1022292.

It is an arithmetic number, because the mean of its divisors is an integer number (31689192).

Almost surely, 2^124712243 is an apocalyptic number.

124712243 is a deficient number, since it is larger than the sum of its proper divisors (2044525).

124712243 is an equidigital number, since it uses as much as digits as its factorization.

124712243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044524.

The product of its digits is 2688, while the sum is 26.

The square root of 124712243 is about 11167.4635884788. The cubic root of 124712243 is about 499.6160292083.

Adding to 124712243 its reverse (342217421), we get a palindrome (466929664).

The spelling of 124712243 in words is "one hundred twenty-four million, seven hundred twelve thousand, two hundred forty-three".