124421525 has 6 divisors (see below), whose sum is σ = 154282722. Its totient is φ = 99537200.

The previous prime is 124421483. The next prime is 124421533. The reversal of 124421525 is 525124421.

It can be written as a sum of positive squares in 3 ways, for example, as 32913169 + 91508356 = 5737^2 + 9566^2 .

It is not a de Polignac number, because 124421525 - 2²² = 120227221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124421494 and 124421503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2488406 + ... + 2488455.

It is an arithmetic number, because the mean of its divisors is an integer number (25713787).

Almost surely, 2^124421525 is an apocalyptic number.

It is an amenable number.

124421525 is a deficient number, since it is larger than the sum of its proper divisors (29861197).

124421525 is an equidigital number, since it uses as much as digits as its factorization.

124421525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4976871 (or 4976866 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 124421525 is about 11154.4396990615. The cubic root of 124421525 is about 499.2275071242.

Adding to 124421525 its reverse (525124421), we get a palindrome (649545946).

The spelling of 124421525 in words is "one hundred twenty-four million, four hundred twenty-one thousand, five hundred twenty-five".