124242305 has 16 divisors (see below), whose sum is σ = 163033344. Its totient is φ = 90142080.

The previous prime is 124242271. The next prime is 124242317. The reversal of 124242305 is 503242421.

It is a happy number.

It is not a de Polignac number, because 124242305 - 2⁶ = 124242241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22664 + ... + 27606.

It is an arithmetic number, because the mean of its divisors is an integer number (10189584).

Almost surely, 2^124242305 is an apocalyptic number.

It is an amenable number.

124242305 is a deficient number, since it is larger than the sum of its proper divisors (38791039).

124242305 is a wasteful number, since it uses less digits than its factorization.

124242305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 124242305 is about 11146.4032315362. The cubic root of 124242305 is about 498.9876918476.

Adding to 124242305 its reverse (503242421), we get a palindrome (627484726).

The spelling of 124242305 in words is "one hundred twenty-four million, two hundred forty-two thousand, three hundred five".