8124725 has 24 divisors (see below), whose sum is σ = 12195648. Its totient is φ = 5241600.

The previous prime is 8124709. The next prime is 8124731. The reversal of 8124725 is 5274218.

It is not a de Polignac number, because 8124725 - 2⁴ = 8124709 is a prime.

It is a super-2 number, since 2×8124725² = 132022312651250, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8⁶ + 1 + 2 + 4¹⁰ + 7⁸ + 2²⁰ + 5⁴ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1610 + ... + 4340.

It is an arithmetic number, because the mean of its divisors is an integer number (508152).

Almost surely, 2^8124725 is an apocalyptic number.

8124725 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8124725 is a deficient number, since it is larger than the sum of its proper divisors (4070923).

8124725 is a wasteful number, since it uses less digits than its factorization.

8124725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765 (or 2760 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 8124725 is about 2850.3903241486. The cubic root of 8124725 is about 201.0340198022.

The spelling of 8124725 in words is "eight million, one hundred twenty-four thousand, seven hundred twenty-five".