124305221 has 8 divisors (see below), whose sum is σ = 125553120. Its totient is φ = 123063408.

The previous prime is 124305211. The next prime is 124305263. The reversal of 124305221 is 122503421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124305221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 124305193 and 124305202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124305211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46910 + ... + 49488.

It is an arithmetic number, because the mean of its divisors is an integer number (15694140).

Almost surely, 2^124305221 is an apocalyptic number.

It is an amenable number.

124305221 is a deficient number, since it is larger than the sum of its proper divisors (1247899).

124305221 is a wasteful number, since it uses less digits than its factorization.

124305221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 124305221 is about 11149.2251300259. The cubic root of 124305221 is about 499.0719063502.

Adding to 124305221 its reverse (122503421), we get a palindrome (246808642).

The spelling of 124305221 in words is "one hundred twenty-four million, three hundred five thousand, two hundred twenty-one".