125848521 has 6 divisors (see below), whose sum is σ = 181781210. Its totient is φ = 83899008.

The previous prime is 125848453. The next prime is 125848543.

125848521 is a `hidden beast` number, since 125 + 8 + 4 + 8 + 521 = 666.

125848521 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 81812025 + 44036496 = 9045^2 + 6636^2 .

It is not a de Polignac number, because 125848521 - 2¹⁰ = 125847497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125848421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6991576 + ... + 6991593.

Almost surely, 2^125848521 is an apocalyptic number.

It is an amenable number.

125848521 is a deficient number, since it is larger than the sum of its proper divisors (55932689).

125848521 is a wasteful number, since it uses less digits than its factorization.

125848521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13983175 (or 13983172 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 125848521 is about 11218.2227201995. Note that the first 3 decimals coincide. The cubic root of 125848521 is about 501.1288109870.

The spelling of 125848521 in words is "one hundred twenty-five million, eight hundred forty-eight thousand, five hundred twenty-one".