125246521 has 4 divisors (see below), whose sum is σ = 126832000. Its totient is φ = 123661044.

The previous prime is 125246519. The next prime is 125246533. The reversal of 125246521 is 125642521.

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 a cyclic number.

It is not a de Polignac number, because 125246521 - 2¹ = 125246519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125246521.

It is not an unprimeable number, because it can be changed into a prime (125246501) 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, 792621 + ... + 792778.

It is an arithmetic number, because the mean of its divisors is an integer number (31708000).

Almost surely, 2^125246521 is an apocalyptic number.

It is an amenable number.

125246521 is a deficient number, since it is larger than the sum of its proper divisors (1585479).

125246521 is an equidigital number, since it uses as much as digits as its factorization.

125246521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585478.

The product of its digits is 4800, while the sum is 28.

The square root of 125246521 is about 11191.3592114631. The cubic root of 125246521 is about 500.3284788227.

The spelling of 125246521 in words is "one hundred twenty-five million, two hundred forty-six thousand, five hundred twenty-one".