8125641 has 6 divisors (see below), whose sum is σ = 11737050. Its totient is φ = 5417088.

The previous prime is 8125639. The next prime is 8125669. The reversal of 8125641 is 1465218.

8125641 is a `hidden beast` number, since 8 + 12 + 5 + 641 = 666.

8125641 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7817616 + 308025 = 2796^2 + 555^2 .

It is not a de Polignac number, because 8125641 - 2¹ = 8125639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8125631) 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, 451416 + ... + 451433.

It is an arithmetic number, because the mean of its divisors is an integer number (1956175).

Almost surely, 2^8125641 is an apocalyptic number.

It is an amenable number.

8125641 is a deficient number, since it is larger than the sum of its proper divisors (3611409).

8125641 is a wasteful number, since it uses less digits than its factorization.

8125641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902855 (or 902852 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 8125641 is about 2850.5509993684. The cubic root of 8125641 is about 201.0415745293.

The spelling of 8125641 in words is "eight million, one hundred twenty-five thousand, six hundred forty-one".