125324521 has 4 divisors (see below), whose sum is σ = 143228032. Its totient is φ = 107421012.

The previous prime is 125324509. The next prime is 125324533. The reversal of 125324521 is 125423521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (125324509) and next prime (125324533).

It is a cyclic number.

It is not a de Polignac number, because 125324521 - 2⁹ = 125324009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125324501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8951745 + ... + 8951758.

It is an arithmetic number, because the mean of its divisors is an integer number (35807008).

Almost surely, 2^125324521 is an apocalyptic number.

It is an amenable number.

125324521 is a deficient number, since it is larger than the sum of its proper divisors (17903511).

125324521 is an equidigital number, since it uses as much as digits as its factorization.

125324521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17903510.

The product of its digits is 2400, while the sum is 25.

The square root of 125324521 is about 11194.8435004693. The cubic root of 125324521 is about 500.4323207565.

The spelling of 125324521 in words is "one hundred twenty-five million, three hundred twenty-four thousand, five hundred twenty-one".