124413021 has 12 divisors (see below), whose sum is σ = 190278972. Its totient is φ = 78062976.

The previous prime is 124413019. The next prime is 124413041. The reversal of 124413021 is 120314421.

It can be written as a sum of positive squares in 2 ways, for example, as 46090521 + 78322500 = 6789^2 + 8850^2 .

It is not a de Polignac number, because 124413021 - 2¹ = 124413019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124412985 and 124413003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124413001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406426 + ... + 406731.

It is an arithmetic number, because the mean of its divisors is an integer number (15856581).

Almost surely, 2^124413021 is an apocalyptic number.

It is an amenable number.

124413021 is a deficient number, since it is larger than the sum of its proper divisors (65865951).

124413021 is a wasteful number, since it uses less digits than its factorization.

124413021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813180 (or 813177 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 124413021 is about 11154.0584990397. The cubic root of 124413021 is about 499.2161330808.

Adding to 124413021 its reverse (120314421), we get a palindrome (244727442).

The spelling of 124413021 in words is "one hundred twenty-four million, four hundred thirteen thousand, twenty-one".