8210045 has 16 divisors (see below), whose sum is σ = 10447920. Its totient is φ = 6182400.

The previous prime is 8210017. The next prime is 8210053. The reversal of 8210045 is 5400128.

It can be written as a sum of positive squares in 8 ways, for example, as 1038361 + 7171684 = 1019^2 + 2678^2 .

It is not a de Polignac number, because 8210045 - 2¹² = 8205949 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8209999 and 8210026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5255 + ... + 6635.

It is an arithmetic number, because the mean of its divisors is an integer number (652995).

Almost surely, 2^8210045 is an apocalyptic number.

It is an amenable number.

8210045 is a deficient number, since it is larger than the sum of its proper divisors (2237875).

8210045 is a wasteful number, since it uses less digits than its factorization.

8210045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 8210045 is about 2865.3176089223. The cubic root of 8210045 is about 201.7352755502.

The spelling of 8210045 in words is "eight million, two hundred ten thousand, forty-five".