7285045 has 8 divisors (see below), whose sum is σ = 8757720. Its totient is φ = 5817600.

The previous prime is 7285007. The next prime is 7285049. The reversal of 7285045 is 5405827.

It can be written as a sum of positive squares in 4 ways, for example, as 762129 + 6522916 = 873^2 + 2554^2 .

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

It is not a de Polignac number, because 7285045 - 2⁹ = 7284533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7284998 and 7285016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7285049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3145 + ... + 4945.

It is an arithmetic number, because the mean of its divisors is an integer number (1094715).

Almost surely, 2^7285045 is an apocalyptic number.

It is an amenable number.

7285045 is a deficient number, since it is larger than the sum of its proper divisors (1472675).

7285045 is a wasteful number, since it uses less digits than its factorization.

7285045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 7285045 is about 2699.0822514329. The cubic root of 7285045 is about 193.8551811833.

The spelling of 7285045 in words is "seven million, two hundred eighty-five thousand, forty-five".