124280017 has 4 divisors (see below), whose sum is σ = 129683520. Its totient is φ = 118876516.

The previous prime is 124279963. The next prime is 124280021. The reversal of 124280017 is 710082421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 710082421 = 19 ⋅37372759.

It is a cyclic number.

It is not a de Polignac number, because 124280017 - 2¹¹ = 124277969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124279973 and 124280000.

It is not an unprimeable number, because it can be changed into a prime (124280417) 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, 2701717 + ... + 2701762.

It is an arithmetic number, because the mean of its divisors is an integer number (32420880).

Almost surely, 2^124280017 is an apocalyptic number.

It is an amenable number.

124280017 is a deficient number, since it is larger than the sum of its proper divisors (5403503).

124280017 is an equidigital number, since it uses as much as digits as its factorization.

124280017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5403502.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 124280017 is about 11148.0947699596. The cubic root of 124280017 is about 499.0381736331.

The spelling of 124280017 in words is "one hundred twenty-four million, two hundred eighty thousand, seventeen".