124341521 has 4 divisors (see below), whose sum is σ = 124391652. Its totient is φ = 124291392.

The previous prime is 124341499. The next prime is 124341523. The reversal of 124341521 is 125143421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82609921 + 41731600 = 9089^2 + 6460^2 .

It is a cyclic number.

It is not a de Polignac number, because 124341521 - 2⁶ = 124341457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124341523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21140 + ... + 26373.

It is an arithmetic number, because the mean of its divisors is an integer number (31097913).

Almost surely, 2^124341521 is an apocalyptic number.

It is an amenable number.

124341521 is a deficient number, since it is larger than the sum of its proper divisors (50131).

124341521 is an equidigital number, since it uses as much as digits as its factorization.

124341521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50130.

The product of its digits is 960, while the sum is 23.

The square root of 124341521 is about 11150.8529270186. The cubic root of 124341521 is about 499.1204818026.

Adding to 124341521 its reverse (125143421), we get a palindrome (249484942).

The spelling of 124341521 in words is "one hundred twenty-four million, three hundred forty-one thousand, five hundred twenty-one".