124411421 has 8 divisors (see below), whose sum is σ = 128857080. Its totient is φ = 119976192.

The previous prime is 124411403. The next prime is 124411433. The reversal of 124411421 is 124114421.

It can be written as a sum of positive squares in 4 ways, for example, as 15960025 + 108451396 = 3995^2 + 10414^2 .

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-124411421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124411393 and 124411402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124411451) 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, 27881 + ... + 32033.

It is an arithmetic number, because the mean of its divisors is an integer number (16107135).

Almost surely, 2^124411421 is an apocalyptic number.

It is an amenable number.

124411421 is a deficient number, since it is larger than the sum of its proper divisors (4445659).

124411421 is a wasteful number, since it uses less digits than its factorization.

124411421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5215.

The product of its digits is 256, while the sum is 20.

The square root of 124411421 is about 11153.9867760366. The cubic root of 124411421 is about 499.2139930336.

Adding to 124411421 its reverse (124114421), we get a palindrome (248525842).

The spelling of 124411421 in words is "one hundred twenty-four million, four hundred eleven thousand, four hundred twenty-one".