8124745 has 8 divisors (see below), whose sum is σ = 9765000. Its totient is φ = 6489600.

The previous prime is 8124731. The next prime is 8124757. The reversal of 8124745 is 5474218.

It can be written as a sum of positive squares in 4 ways, for example, as 76176 + 8048569 = 276^2 + 2837^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-8124745 is a prime.

It is a super-2 number, since 2×8124745² = 132022962630050, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5595 + ... + 6895.

It is an arithmetic number, because the mean of its divisors is an integer number (1220625).

Almost surely, 2^8124745 is an apocalyptic number.

It is an amenable number.

8124745 is a deficient number, since it is larger than the sum of its proper divisors (1640255).

8124745 is a wasteful number, since it uses less digits than its factorization.

8124745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555.

The product of its digits is 8960, while the sum is 31.

The square root of 8124745 is about 2850.3938324379. The cubic root of 8124745 is about 201.0341847586.

The spelling of 8124745 in words is "eight million, one hundred twenty-four thousand, seven hundred forty-five".