124214521 has 2 divisors, whose sum is σ = 124214522. Its totient is φ = 124214520.

The previous prime is 124214507. The next prime is 124214579. The reversal of 124214521 is 125412421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124099600 + 114921 = 11140^2 + 339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124214521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124214492 and 124214501.

It is not a weakly prime, because it can be changed into another prime (124214581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62107260 + 62107261.

It is an arithmetic number, because the mean of its divisors is an integer number (62107261).

Almost surely, 2^124214521 is an apocalyptic number.

It is an amenable number.

124214521 is a deficient number, since it is larger than the sum of its proper divisors (1).

124214521 is an equidigital number, since it uses as much as digits as its factorization.

124214521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640, while the sum is 22.

The square root of 124214521 is about 11145.1568405294. The cubic root of 124214521 is about 498.9504932793.

Adding to 124214521 its reverse (125412421), we get a palindrome (249626942).

The spelling of 124214521 in words is "one hundred twenty-four million, two hundred fourteen thousand, five hundred twenty-one".